Electromagnetic driven pile driver and self-propelled electromagnetic driven pile driver

Abstract

The present invention relates to an electromagnetic driven pile driver and a self-propelled electromagnetic driven pile driver. The electromagnetic driven pile driver comprises a main pile frame, a traction mechanism, an electromagnetic driving system and a hammer removal device. The traction mechanism comprises a traction wheel, a pulley block A, a traction rope, a traction counterweight and a hanger, and the traction rope is wound around the traction wheel and the pulley block A, one end of which is connected to the traction counterweight, and the other end is connected to the hanger. The electromagnetic driving system comprises a stator housing and a flat stator installed on the inner side of the stator housing, and the hanger is slidably connected to the inner side of the stator housing. The hammer removal device comprises a hammer body and an electromagnet insulated and connected to the hanger, the hammer body is arranged below the electromagnet and electromagnetically cooperates with the electromagnet, the hammer body is slidably connected to the inner side of the stator housing, and the outer side surface of the hammer body is covered with a metal plate and cooperates with the air gap of the flat stator. The present invention has the advantages of high energy efficiency, large pile driving energy, low noise, energy saving and environmental protection, good maneuverability, low use cost, etc., and can be used for multiple purposes, replacing the existing pile driver in urban and rural areas.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction equipment, in particular to an electromagnetic driven pile driver and a self-propelled electromagnetic driven pile driver. Background Art

[0002] In construction, in order to prevent the building foundation from settling, it is often necessary to drive the pile pipe into the underground soil layer using a pile driver. A pile driver is a main machine that drives the pile pipe into the soil by impacting the pile pipe with a hammer. Among them, the hammers mainly include drop hammers, steam hammers, diesel hammers, and hydraulic hammers.

[0003] The drop hammer has a simple structure and is easy to use, but its production efficiency is low and the pile pipe is easily damaged; the diesel hammer has a simple structure and is easy to use. It does not require external energy supply and is the most widely used, but it will cause public hazards such as noise and air pollution, and is strictly restricted in urban construction; the steam hammer uses steam power to hammer, has a large impact force, is suitable for various piles, and has high work efficiency, but requires a set of boiler equipment; the hydraulic hammer does not emit any exhaust gas, has no noise, has a high impact frequency, and is a more ideal piling equipment, but has a complex structure and is very expensive. Summary of the invention

[0004] Based on this, the present invention provides an electromagnetically driven pile driver and a self-propelled electromagnetically driven pile driver with a simple structure, high energy efficiency, no noise and air pollution, energy saving and environmental protection, and low cost, which can save energy and increase the hammer's pile-driving energy, and are used to replace existing pile drivers for use in urban construction.

[0005] The present invention is achieved through the following technical solutions:

[0006] An electromagnetic driven pile driver, comprising:

[0007] The main pile frame is provided with a first pile chamber and a second pile chamber which are longitudinally separated;

[0008] The traction mechanism comprises a traction wheel, a pulley block A, a traction rope, a traction counterweight and a hanger, wherein the traction counterweight is arranged in the second pile chamber and is slidably connected to the side of the second pile chamber; the traction wheel is arranged in the main pile frame and is used for driving connection with the traction motor, the traction rope is wound around the traction wheel and the pulley block A, one end of the traction rope is connected to the traction counterweight, and the other end is connected to the hanger;

[0009] The electromagnetic drive system comprises a flat plate stator and a stator housing, wherein the flat plate stator is installed on the inner side of the stator housing, the stator housing is vertically arranged in the first pile chamber, and the hanger is slidably connected to the inner side of the stator housing;

[0010] The hammer removal device includes a hammer body and an electromagnet connected to a power supply, wherein the electromagnet is insulated and connected to the hanger, the hammer body is arranged below the electromagnet and electromagnetically cooperates with the electromagnet, the hammer body is slidably connected to the inner side of the stator shell, and the outer side surface of the hammer body is covered with a metal plate and cooperates with the air gap of the flat stator.

[0011] In one embodiment, the electromagnetic drive system further comprises a stator housing lifting device, which comprises a housing counterweight, a housing counterweight slide, a slide rail, a traction rope, a pulley block B and a housing control motor; the stator housing is slidably connected to the side of the first pile chamber via a housing frame, and the hanger is slidably connected to the inner side of the stator housing via a pulley; the slide rail is arranged on the side of the second pile chamber and extends downward, and the housing counterweight is slidably connected to the slide rail via the housing counterweight slide; the traction rope is wound around the housing control motor and the pulley block B, and is connected to the stator housing or the housing frame, and the stator housing is controlled by the movement of the housing control motor;

[0012] The stator housing lifting device also includes a movable ratchet plate, a triangular stopper, a ratchet plate bracket and a push-pull member; the movable ratchet plate is hinged to the ratchet plate bracket, the ratchet plate bracket is installed on the side of the first pile chamber, the triangular stopper is fixed to the outside of the stator housing, a compression spring is provided between the movable ratchet plate and the ratchet plate bracket, the push-pull member is connected in series with each movable ratchet plate, the movable ratchet plate cooperates with the triangular stopper, and the engagement and separation states are realized under the action of the compression spring and the push-pull member.

[0013] In one embodiment, the traction mechanism further includes a traction motor, a spline, a boss and a traction frame, the traction wheel is transmission-connected to the traction motor via the spline, the traction wheel is provided with a spiral rope groove adapted to the traction rope, the boss is fixed to the traction frame and cooperates with the spiral rope groove on the traction wheel.

[0014] In one embodiment, the electromagnetic driven pile driver further comprises a controller, a counterweight sensor and a magnetic strip, wherein the magnetic strip is arranged on the side of the second pile chamber, and the counterweight sensor is arranged on the traction counterweight and cooperates with the magnetic strip; the counterweight sensor is electrically connected to the controller, and the traction motor and the electromagnet are controlled by signals from the controller.

[0015] In one embodiment, the main pile frame includes four columns A, two center columns A, two or more cross beams A, two or more side beams A and two or more center beams A, the four columns A are symmetrically erected at the four corners of the main pile frame; on the left side or right side of the main pile frame, the columns A are transversely connected to each other by two or more side beams A; the top and bottom of the two columns A are transversely connected by one cross beam A respectively at the front side and the rear side of the main pile frame, the two center columns A are erected relatively to each other at the middle of the cross beams A, the center column A is transversely connected to the two columns A by two or more cross beams A, and the center columns A are transversely connected to each other by two or more center beams A; the center beams A divide the main pile frame and enclose the first pile chamber and the second pile chamber;

[0016] The electromagnetic driven pile driver also includes at least two guide rails A and at least two guide rails B. The guide rails A are relatively and respectively fixedly arranged vertically on the side beams A and the middle beam A of the first pile chamber, or the guide rails A are relatively and respectively fixedly arranged vertically on the side beams A and the middle beam A of the first pile chamber through guide rail brackets; the guide rails B are relatively and respectively fixedly arranged vertically on the side beams A and the middle beam A of the second pile chamber, or the guide rails B are relatively and respectively fixedly arranged vertically on the side beams A and the middle beam A of the second pile chamber through guide rail brackets; the traction counterweight is slidably connected to the guide rail B through a counterweight slide.

[0017] A self-propelled electromagnetic driven pile driver comprises the electromagnetic driven pile driver and a bottom pile frame, wherein the bottom pile frame is provided with a third pile chamber corresponding to the first pile chamber and a fourth pile chamber corresponding to the second pile chamber, an opening is provided on the front side of the third pile chamber, and the top of the bottom pile frame is detachably connected to the bottom of the main pile frame.

[0018] In one embodiment, the bottom pile frame includes a bottom cross beam, a bottom longitudinal beam and a front cross beam arranged in front of the bottom cross beam, and the two ends of the bottom cross beam and the front cross beam are respectively fixedly connected to the bottom longitudinal beam arranged oppositely; the bottom pile frame also includes four columns B, two middle columns B and two or more cross beams B, side beams B and middle beams B, the four columns B are vertically arranged at the four corners of the bottom cross beam, and the two middle columns B are respectively vertically arranged on the bottom cross beam between the columns B on the same side; at the two sides of the bottom pile frame, the columns B are connected by more than two side beams B, and at the middle longitudinal part of the bottom pile frame, the middle columns B are connected by more than two middle beams B, and the middle columns B divide the bottom pile frame into the third pile chamber and the fourth pile chamber; at the rear side of the bottom pile frame, the upper parts of the two columns B are horizontally connected by a cross beam B, or the upper parts and lower parts of the two columns B are each connected by a cross beam B, and at the middle parts of the two columns B at the rear side of the bottom pile frame, the columns B and the middle column B are horizontally connected by two or more cross beams B; at the front side of the bottom pile frame, the upper parts of the two columns B are connected by a cross beam B, or the upper parts and lower parts of the two columns B are each connected by a cross beam B; at the front side of the bottom pile frame corresponding to the fourth pile chamber, the columns B and the middle column B are connected by two or more cross beams B;

[0019] The bottom pile frame also includes at least two guide rails C and at least two guide rails D. The guide rails C are fixedly arranged on the side beams B and the middle beams B of the third pile chamber relative to and vertically, and are used to be smoothly connected with the guide rails A in the first pile chamber; the guide rails D are fixedly arranged on the side beams B and the middle beams B of the fourth pile chamber relative to and vertically, and are used to be smoothly connected with the guide rails B of the second pile chamber;

[0020] Alternatively, the bottom pile frame further comprises a guide rail bracket, through which the guide rail C is relatively and respectively fixedly arranged on the side beam B and the middle beam B of the third pile chamber vertically, and is used to be smoothly connected to the guide rail A of the first pile chamber; the guide rail D is relatively and respectively fixedly arranged on the side beam B and the middle beam B of the fourth pile chamber vertically, through the guide rail bracket, and is used to be smoothly connected to the guide rail B of the second pile chamber.

[0021] In one embodiment, the self-propelled electromagnetic driven pile driver further comprises a pile pipe rack, a fixed hoop and a movable hoop arranged in the first pile chamber or the third pile chamber; the pile pipe rack is slidably connected to one of the guide rails A or C, the fixed hoop is fixed to the pile pipe rack and cooperates with the movable hoop to fix the pile pipe, and a buffer ring is provided between the fixed hoop and the movable hoop and the pile pipe.

[0022] In one embodiment, the self-propelled electromagnetic driven pile driver further comprises a walking mechanism, wherein the walking mechanism comprises an adjustable leg, a steering wheel and a driving wheel; the adjustable leg, the steering wheel and the driving wheel are arranged on the bottom longitudinal beam or the bottom cross beam;

[0023] The walking mechanism also includes a sliding platform and a pile pipe presetting cylinder arranged on the sliding platform. The sliding platform is movably arranged at the bottom of the bottom pile frame. The pile pipe presetting cylinder is used to carry the pile pipe. The sliding platform can slide into or out of the third pile chamber from the opening.

[0024] In one of the embodiments, the self-propelled electromagnetic driven pile driver further includes a laser plumb measuring device and a laser receiving device. The laser plumb measuring device is arranged on the top of the main pile frame, and the laser receiving device is arranged on the bottom pile frame. The laser receiving device cooperates with the projection of the laser plumb measuring device.

[0025] The electromagnetic driven pile driver of the present invention has the following advantages:

[0026] 1. The present invention adopts a traction drive mode when lifting the hammer. The traction drive structure is simple, and there are ready-made spare parts on the market. It is installed in conjunction with the steel structure pile frame, so that the overall weight is light, the production cost is low, energy consumption is saved, the noise is small, and it has the effects of energy saving and environmental protection;

[0027] 2. The present invention combines traction drive with electromagnetic drive, and uses electromagnetic drive to accelerate the falling of the hammer to achieve high-speed pile driving. Electromagnetic drive acceleration has the advantages of high energy efficiency, large pile driving energy, low processing and use costs, etc., which is a major breakthrough in the field of pile driving machinery;

[0028] 3. The single-hung electromagnetic driven pile driver is small in size and convenient for processing and transportation. When used with a crawler pile driver, it can replace steam hammers, diesel hammers, and hydraulic hammers and can be used in existing construction environments;

[0029] 4. The pile frame of the self-propelled electromagnetic driven pile driver adopts detachable connection and is equipped with a walking mechanism. It has good mobility and can independently carry out work such as transfer, displacement, pile erection and pile replacement. It does not need to be used in conjunction with a crawler pile driver, so it can save a lot of construction project investment;

[0030] 5. The operation of the electromagnetic drive system and the hammer release device of the present invention is controlled by the signal of the controller. The pile striking intensity and the pile striking process of the hammer body can be automatically controlled through a preset program, so that the present invention can adapt to different working conditions. Therefore, one machine can be used for multiple purposes and replace pile drivers of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic structural diagram of an electromagnetic driven pile driver according to a first embodiment of the present invention;

[0032] Figure 2 This is a three-dimensional diagram of the main pile frame structure of the first embodiment;

[0033] Figure 3 is a top view of the first embodiment;

[0034] Figure 4 It is a schematic diagram of an electromagnetic hammer-releasing device and a hammer body in a state of being separated from each other according to an embodiment of the present invention;

[0035] Figure 5 It is a schematic diagram of an electromagnetic hammer-releasing device and a hammer body in a connected state according to an embodiment of the present invention;

[0036] Figure 6 It is a structural schematic diagram of another embodiment of the present invention in which the mechanical hammer-removing device is separated from the hammer body;

[0037] Figure 7 It is a structural schematic diagram of another embodiment of the present invention in which a mechanical hammer-releasing device is connected to a hammer body;

[0038] Figure 8 It is a structural schematic diagram of the stator housing of the present invention;

[0039] Fig. 9 This is a schematic diagram of the structure of an electromagnetic driven pile driver according to a second embodiment of the present invention;

[0040] Fig.10 This is a schematic structural diagram of a shell lifting device according to a second embodiment of the present invention;

[0041] Fig.11 is a top view of the second embodiment;

[0042] Fig.12 It is a partial enlarged schematic diagram of the shell lifting device of the second embodiment of the present invention;

[0043] Fig.13 for Fig. 9 A local enlarged schematic diagram of the middle A;

[0044] Fig.14 It is a structural schematic diagram of the bottom pile frame of the second embodiment;

[0045] Fig.15 A schematic structural diagram of a pile pipe frame according to an embodiment of the present invention;

[0046] Fig.16 It is a schematic diagram of the three-dimensional structure of the second embodiment;

[0047] Fig.17 This is a schematic diagram of the walking mechanism structure of the second embodiment;

[0048] Fig.18 It is a schematic structural diagram of a drum-type traction wheel according to an embodiment of the present invention;

[0049] Fig.19 This is a schematic diagram of the electromagnetic drive of the present invention.

[0050] Description of the drawings: main pile frame 1 bottom pile frame 2 column A 11 center column A 12 cross beam A 13 side beam A 14 center beam A 15 connecting plate 16 opening 20 column B 21 center column B 22 cross beam B 23 side beam B 24 center beam B 25 bottom cross beam 27 bottom longitudinal beam 28 front cross beam 29 guide rail A 101 guide rail B 102 guide rail bracket 103 guide rail C 104 guide rail D 105 pile pipe 106 anvil 107 pile pipe frame 109 fixed hoop 111 movable hoop 112 buffer ring 113 adjustable leg 115 steering wheel 116 driving wheel 117 sliding platform 118 laser plumb measuring device 119 pile pipe presetting cylinder 120 traction wheel 201 pulley block A 202 Traction counterweight 204 Counterweight slide 205 Traction rope 206 Hammer 207 Hammer slide 208 Pulley 209 Metal plate 210 Hook 211 Hanger 212 Hanger cross tube 213 Elastic member 214 Reinforcement plate 215 Electromagnet 216 Counterweight sensor 218 Magnetic strip 219 Stop frame 220 Traction motor 221 Spline 222 Boss 223 Traction frame 224 Flat stator 301 Stator housing 302 Housing frame 303 Housing counterweight 304 Housing counterweight slide 305 Slide rail 307 Slide rail bracket 308 Traction rope 309 Pulley block B 310 Housing control motor 311 Movable thorn plate 313 Triangular stop head 314 Ratchet plate bracket 315 Pull rope 316 Stator winding 41 Winding coil 42 induction iron plate 43 copper plate or aluminum plate 44 power supply 45 DETAILED DESCRIPTION

[0051] In order to make the above-mentioned purpose, features and advantages of the present invention more obvious and easy to understand, the specific implementation mode of the present invention is described in detail below in conjunction with the accompanying drawings. 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 in practice, so the present invention can make many similar improvements without being limited by the specific embodiments disclosed below. Without violating the connotation of the present invention, these improvements still belong to the protection scope required by the present invention.

[0052] Embodiment 1:

[0053] Example 1: See Figure 1 An electromagnetic driven pile driver provided by one embodiment of the present invention includes a main pile frame 1, a traction mechanism, an electromagnetic drive system and a hammer removal device.

[0054] In one embodiment, see Figure 1 and Figure 2 The main pile frame 1 is provided with a first pile chamber and a second pile chamber which are longitudinally separated. The main pile frame 1 includes four columns A11, two center columns A12, two or more cross beams A13, two or more side beams A14 and two or more center beams A15. The four columns A11 are symmetrically erected at the four corners of the main pile frame 1. On the left side or right side of the main pile frame 1, the columns A11 are transversely connected by two or more side beams A14. On the front side and rear side of the main pile frame 1, the upper and lower parts of the two columns A11 are transversely connected by a cross beam A13 respectively, and the two center columns A12 are erected oppositely in the middle of the cross beam A13. The center column A12 is transversely connected to the two columns A11 by two or more cross beams A13, and the center columns A12 are transversely connected by two or more center beams A15. The center beam A15 divides the main pile frame 1 and encloses to form the first pile chamber and the second pile chamber. In this way, a main pile frame 1 having a first pile chamber and a second pile chamber is obtained, and the main pile frame 1 has a strong ability to resist crosswind. Optionally, the above-mentioned columns A11, center columns A12, cross beams A13, side beams A14 and center beams A15 are steel pipes, and the steel pipes are connected in the above-mentioned manner to obtain the main pile frame 1 having the first pile chamber and the second pile chamber. In this way, the main pile frame 1 is light in weight, easy to process, low in cost, and has a strong ability to resist crosswind. Of course, in other embodiments, the main pile frame 1 can also be formed by welding steel plates and reinforced with steel pipes.

[0055] It should be noted that, without affecting the operation of the pile driver, the top and bottom of the main pile frame 1 need to be enclosed to prevent dust from entering.

[0056] Further, see Figure 1 , Figure 2 and Figure 3 The electromagnetic driven pile driver also includes at least two guide rails A101 and at least two guide rails B102. The guide rails A101 are fixedly mounted on the side beams A14 and the middle beams A15 of the first pile chamber in a relative and vertical manner, and the guide rails B102 are fixedly mounted on the side beams A14 and the middle beams A15 of the second pile chamber in a relative and vertical manner. In this way, the guide rails A101 and the guide rails B102 can play a guiding role to ensure that the hammer 207 and the traction counterweight 204 are lifted and lowered smoothly in the vertical direction.

[0057] Optionally, see Figure 1 and Figure 2 The electromagnetic driven pile driver also includes a guide rail bracket 103, the guide rail A101 is fixedly mounted on the side beam A14 and the middle beam A15 of the first pile chamber relative to and vertically through the guide rail bracket 103, and the guide rail B102 is fixedly mounted on the side beam A14 and the middle beam A15 of the second pile chamber relative to and vertically through the guide rail bracket 103.

[0058] It should be noted that the above-mentioned guide rails A101 and guide rails B102 can adopt the guide rails of existing elevators. When in use, guide shoes are installed at both ends of the counterweight slide 205 to match them to reduce production costs. The installation of the guide rails can also adopt the installation method of the elevator.

[0059] The present invention is a pile driver using electromagnetic drive, but it is technically very difficult to use electromagnetic drive to lift a hammer weighing several tons: the hammer consumes a lot of energy during the lifting process, and its high-speed response is also difficult to control. Therefore, the present invention uses a traction drive to solve the hammer lifting problem.

[0060] In one embodiment, see Figure 1 and Fig.18 The traction mechanism includes a traction motor 221, a traction wheel 201, a pulley block A202, a traction rope 206, a traction counterweight 204 and a hanger 212. The traction counterweight 204 is arranged in the second pile chamber and is slidably connected to the side of the second pile chamber. The traction wheel 201 is arranged on the main pile frame 1 and is used for transmission connection with the traction motor 221. The traction rope 206 is wound around the traction wheel 201 and the pulley block A202. One end of the traction rope 206 is connected to the traction counterweight 204, and the other end is connected to the hanger 212. Figure 1 ,、 Figure 4 and Figure 5 The hammer removal device includes a hammer body 207 and an electromagnet 216 connected to a power source. The electromagnet 216 is insulated and connected to the hanger 212. The hammer body 207 is arranged below the electromagnet 216 and electromagnetically cooperates with the electromagnet 216.

[0061] Specifically, the traction counterweight 204 is slidably connected to the guide rail B102 through the counterweight carriage 205, and the traction motor 221 and the traction wheel 201 are arranged on the top of the main pile frame 1 and are transmission-connected. Of course, for the convenience of maintenance, the traction motor 221 and the traction wheel 201 can also be arranged at the bottom of the main pile frame 1.

[0062] If an iron hammer 207 is arranged below the electromagnet 216, the electromagnet 216 and the hammer 207 can be engaged or disengaged by electromagnetic cooperation. In this way, during the hammer lifting process, a considerable part of the weight of the hammer 207 is offset by the traction counterweight 204, thereby reducing the power consumption of the traction motor 221, saving energy, and dragging a heavier hammer 207; when the traction wheel 201 and the traction motor 221 drag the hammer 207 to the top of the main pile frame 1, the power supply is cut off, the hammer 207 loses magnetism and disengages from the electromagnet 216 and gets rid of the constraint of the traction counterweight 204 and falls freely, and its gravity energy can be used to hit the pile pipe 106.

[0063] In some large pile drivers, it is not enough to drive piles only by using the gravity energy of the hammer body 207. In order to obtain greater pile driving energy, the present invention adopts an electromagnetic drive system. Fig.19The schematic diagram of a linear induction motor is shown. The outer side of the induction iron plate 43 is covered with a copper plate or an aluminum plate 44, and the stator windings 41 are symmetrically arranged on both sides thereof. The stator winding 41 is fixedly mounted on the housing, and the winding coil 42 is wound around the stator winding 41. A small air gap is left between the stator winding 41 and the copper plate or the aluminum plate 44 (the air gap is the gap between the stator and the mover in the linear motor. The stator does not move, and the mover must move, so the air gap is necessary. The size of the air gap varies depending on the motor. The stator is equivalent to the stator winding 41 in this example, and the mover is equivalent to the induction iron plate 43 in this example). When an AC power supply 45 is connected to the stator winding 41, a traveling wave magnetic field is generated in the air gap. The copper plate or the aluminum plate 44 on the induction iron plate 43 will induce an electromotive force and generate a current under the cutting of the traveling wave magnetic field. The current interacts with the magnetic field in the air gap to generate an electromagnetic thrust, driving the induction iron plate 43 to perform high-speed linear motion.

[0064] In one embodiment, according to the above principles, referring to Figure 1 , Figure 3 and Figure 8 The electromagnetic drive system includes a flat stator 301 and a stator housing 302. The flat stator 301 is installed on the inner side of the stator housing 302. The stator housing 302 is vertically arranged in the first pile chamber. The hanger 212 is slidably connected to the inner side of the stator housing 302. Specifically, the electromagnetic drive system also includes a housing frame 303. The stator housing 302 is vertically arranged in the first pile chamber through the housing frame 303. The hanger 212 is slidably connected to the inner side of the stator housing 302 through the pulley 209.

[0065] Furthermore, the hammer 207 is slidably connected to the inner side of the stator housing 302 through a hammer slide 208 fixed thereon, and a metal plate 210 is provided on the outer side of the hammer 207, and the air gap is matched with the flat stator 301. According to the requirements of pile drivers of different specifications, the air gap between the metal plate 210 and the flat stator 301 can be selected between 5 and 12 mm. When the flat stator 301 is powered on, the air gap between the metal plate 210 and the flat stator 301 will generate an induced current, thereby generating a strong electromagnetic thrust to drive the hammer 207 to hit the pile downward at high speed.

[0066] Optionally, the metal plate 210 is made of copper plate with good electrical conductivity. Of course, in other embodiments, the outer side of the hammer body 207 can also be covered with an aluminum plate with lower cost, but its electrical conductivity is inferior to that of copper plate, and the electromagnetic thrust generated is also inferior to that of copper plate.

[0067] It should be noted that the electromagnetic acceleration drive system has a simple structure, and the pile-driving stroke can be pre-set in the controller as needed. It responds at high speed after power is turned on, and its acceleration can reach 10G. A certain air gap is always maintained between the metal plate 210 and the flat stator 301 without contact, which eliminates the friction resistance of the contact between the two, thereby greatly improving the pile-driving energy of the hammer 207.

[0068] When the hammer 207 needs to be lifted after hitting the pile, the hanger 212 and the electromagnet 216 descend, and the controller turns on the power supply at the moment when the electromagnet 216 contacts the hammer 207 to attract the hammer 207. At the same time, the traction motor 221 starts to drag the hammer 207 upward; when the hammer 207 reaches the preset position, the controller cuts off the power supply of the electromagnet 216, and the hammer 207 loses magnetism and breaks away from the electromagnet 216, and breaks free from the restraint of the traction counterweight 204 and falls at high speed to strike the pile pipe 106. At the same time, during the lifting and lowering movement of the hanger 212, the electromagnet 216 and the hammer 207 in the first pile chamber, the traction counterweight 204 in the second pile chamber moves in the opposite direction.

[0069] The rope groove of the existing elevator traction wheel is a closed loop, the wrap angle between the traction rope and the traction wheel is small, the generated traction force is small, and it may cause the traction rope and the traction wheel to slip. The present invention solves the above problem by increasing the wrap angle.

[0070] There are two ways to increase the wrap angle; one is Figure 1 As shown, the pulley block A202 and the traction wheel are arranged in a straight line or an inverted triangle; second, as shown Fig.18 As shown, the rope groove on the traction wheel 201 is changed into a spiral shape, and it is improved into a drum-type traction wheel.

[0071] In one embodiment, the traction mechanism further includes a traction motor 221, a spline 222, a protrusion 223 and a traction frame 224. The traction sheave 201 is connected to the traction motor 221 through the spline 222, so that the traction sheave 201 can rotate with the traction motor 221 and can also slide on the spline 222. The traction sheave 201 is provided with a spiral rope groove that matches the traction rope 206. The protrusion 223 is fixed to the traction frame 224 and matches the spiral rope groove on the traction sheave 201.

[0072] During the implementation, the traction rope 206 is wound around the rope groove of the traction wheel 201, and the number of turns is determined as needed. When the traction motor 221 is working, it drives the traction wheel 201 to rotate together, and the traction wheel 201 slides to the left or right under the action of the protrusion 223, thereby ensuring that both ends of the traction rope 206 are always kept in a hanging state with the traction counterweight 204 and the hanger 212, so as to reduce the wear of the traction rope 206 and increase its service life. The drum-type traction wheel can greatly increase the traction force between the traction rope 206 and the traction wheel 201, so it can greatly increase the weight of the traction counterweight 204 and the hammer 207, thereby increasing the pile driving energy.

[0073] In the implementation process, in order to ensure that the pile pipe will not be distorted during high-speed pile driving, it is necessary to guide the sinking process of the pile pipe. Figure 1 and Fig.15 The electromagnetic driven pile driver further comprises a pile pipe guide assembly arranged in the first pile chamber. The pile pipe guide assembly comprises a pile pipe 106, a pile pipe frame 109, a fixed hoop 111 and a movable hoop 112; the pile pipe frame 109 is slidably connected to the guide rail A101, and the fixed hoop 111 is fixed to the pile pipe frame 109 and cooperates with the movable hoop 112 to fix the pile pipe 106.

[0074] Since the pile pipe frame 109 is slidably connected to the guide rail A101, the pile pipe 106 sinks in the direction of the guide rail A101 during the pile driving process, thereby ensuring that the pile pipe will not be crooked during the hammering process. In addition, an anvil 107 is provided on the top of the pile pipe 106, a hammer pad is provided on the bottom of the hammer body 207, and a buffer ring 113 is provided between the fixed hoop 111 and the movable hoop 112 and the pile pipe 106, which can also absorb the vibration energy of the hammer body 207 during the pile driving process, so that the pile pipe 106 is protected and not easily damaged.

[0075] In one embodiment, a hook is provided at the rear side of the main pile frame 1, which can be hung on a crawler pile driver for single use, so it can be called a single-hanging electromagnetic driven pile driver. The operation of the single-hanging electromagnetic driven pile driver can be controlled by a control element provided on the crawler pile driver, and the pile pipe guide assembly mentioned above can be omitted, and the pile pipe can be guided directly by a carriage on the crawler pile driver.

[0076] In one embodiment, the automatic control of the electromagnetic pile driver is realized by a self-set control element. The electromagnetic driven pile driver also includes a controller, a counterweight sensor 218 and a magnetic strip 219. The magnetic strip 219 is arranged on the side of the second pile chamber, and the counterweight sensor 218 is arranged on the side of the traction counterweight 204 and cooperates with the magnetic strip 219. The counterweight sensor 218 is electrically connected to the controller, and the traction motor 221 and the hammer removal device are controlled by the signal of the controller. Optionally, the magnetic strip 219 is arranged on the guide rail bracket 103 of the second pile chamber. The pile driving stroke and the size of the electromagnetic driving current can be preset in the controller program, so the pile driving intensity and pile driving process of the hammer body 207 can be automatically controlled, so that the present invention can adapt to different working conditions and working environments. Therefore, the present invention can be used for multiple purposes and replace pile drivers of different specifications.

[0077] The present invention combines a traction mechanism, an electromagnetic drive system and a hammer-off device, and adopts a traction drive mode when lifting the hammer to save the energy of lifting the hammer. After the hammer is off, the hammer body 207 is electromagnetically driven to accelerate, and the potential energy and kinetic energy of the falling hammer body 207 are used to achieve high-speed pile driving, thereby greatly increasing the pile driving energy of the hammer body 207. Therefore, the present invention has the technical effects of simple structure, high energy efficiency, low noise, large pile driving energy, energy saving and environmental protection, low use cost, etc., so that it can replace steam hammers, diesel hammers and hydraulic hammers and be used in urban construction.

[0078] The single-hung electromagnetic-driven pile driver is simple and light, easy to process and transport. When used in conjunction with a crawler pile driver, it can accomplish tasks such as erecting piles, replacing piles, and transferring sites on the construction site. However, it must be equipped with a crawler pile driver to be used, and the cost of use is relatively high, so it can still be improved.

[0079] Embodiment 2: This embodiment is a self-propelled electromagnetic driven pile driver, which is improved by adding some new technical solutions on the basis of embodiment 1.

[0080] See also Fig.14 and Fig.16 As shown, a self-propelled electromagnetic driven pile driver provided by an embodiment of the present invention comprises the electromagnetic driven pile driver of embodiment 1 and a bottom pile frame 2, wherein the bottom pile frame 2 is provided with a third pile chamber corresponding to the first pile chamber, and a fourth pile chamber corresponding to the second pile chamber, and an opening 20 is provided at the front side of the third pile chamber. The top of the bottom pile frame 2 is detachably connected to the top of the main pile frame 1. In this way, by installing the main pile frame 1 on the top of the bottom pile frame 2, the height of the main pile frame 1 can be increased to adapt to pile pipes 106 of different lengths. In addition, since the main pile frame 1 and the bottom pile frame 2 are detachably connected, processing, disassembly, transfer and transportation are convenient; and the main pile frame 1 and the bottom pile frame 2 can be flexibly used according to different pile pipes 106, for example, the main pile frame 1 can be used alone or the main pile frame 1 and the bottom pile frame 2 can be used in combination, which is more flexible to use.

[0081] Specifically, a connecting plate 16 is provided at the bottom of the main pile frame 1, and a connecting plate 16 is correspondingly provided at the top of the bottom pile frame 2, and the connecting plates 16 of the main pile frame 1 and the bottom pile frame 2 are provided with mounting holes. By inserting mounting parts such as high-strength bolts into the mounting holes, the main pile frame 1 and the bottom pile frame 2 can be detachably connected.

[0082] It should be noted that the bottom pile frame 2 of the large traction-driven pile driver is as high as 15 meters or more. In order to facilitate processing and transportation, the bottom pile frame 2 may include two or more sections of the frame structure and be processed in sections. At the work site, the sections of the frame structure can be connected by bolts and other mounting parts according to the use requirements. Of course, in other embodiments, the bottom pile frame 2 can also be an integrated frame structure.

[0083] In one implementation, see Fig.14 , Fig.16 and Fig.17The bottom pile frame 2 includes a bottom cross beam 27, a bottom longitudinal beam 28 and a front cross beam 29 arranged in front of the bottom cross beam 27. The two ends of the bottom cross beam 27 and the front cross beam 29 are respectively fixedly connected to the bottom longitudinal beam 28 arranged oppositely. The bottom pile frame 2 also includes four columns B21, two middle columns B22, and two or more cross beams B23, side beams B24 and middle beams B25. The four columns B21 are vertically arranged at the four corners of the bottom cross beam 27. The middle columns B22 are respectively vertically arranged on the bottom cross beam 27 between the columns B21 on the same side. At the two side parts of the bottom pile frame 2, the columns B21 are connected by two or more side beams B24; at the middle longitudinal part of the bottom pile frame 2, the middle columns B22 are connected by two or more middle beams B25. The middle columns B22 divide the bottom pile frame 2 into the third pile chamber and the fourth pile chamber. At the rear side of the bottom pile frame 2, the upper parts of the two columns B21 are connected transversely by a cross beam B23, or the upper and lower parts of the two columns B21 are connected by a cross beam B23; at the middle part of the two columns B21 at the rear side of the bottom pile frame 2, the columns B21 and the middle column B22 are connected transversely by two or more cross beams B23. At the front side of the bottom pile frame 2, the upper parts of the two columns B21 are connected by a cross beam B23, or the upper and lower parts of the two columns B21 are connected by a cross beam B23. At the front side of the bottom pile frame 2 corresponding to the fourth pile chamber, the columns B21 and the middle column B22 are connected by two or more cross beams B23. In this way, the bottom pile frame 2 has a strong ability to resist side winds.

[0084] It should be noted that, see Fig.14 Since the front side of the bottom pile frame 2 is provided with an opening 20, in order to prevent the opening 20 from being deformed during transportation, the bottom pile frame 2 corresponding to the third pile chamber of the column B21 and the middle column B22 is connected or welded with a detachable crossbeam B23, and the crossbeam B23 is removed on the construction site, and the various sections of the bottom pile frame 2 are detachably connected. In this way, processing, disassembly, transfer and transportation can be greatly facilitated.

[0085] Optionally, the bottom cross beam 27, the bottom longitudinal beam 28, the front cross beam 29, the column B21, the center column B22, the cross beam B23, the side beam B24 and the center beam B25 are steel pipes, and the steel pipes are connected in the above manner to obtain the bottom pile frame 2 with the third pile chamber and the fourth pile chamber. Of course, in other embodiments, the bottom pile frame 2 can also be a pipe body with the third pile chamber and the fourth pile chamber, for example, the bottom pile frame 2 is obtained by welding steel plates.

[0086] Further, see Figure 1 , Figure 2 and Fig.14The bottom pile frame 2 further includes at least two guide rails C104 and at least two guide rails D105. The guide rails C104 are fixedly mounted on the side beams B24 and the middle beams B25 of the third pile chamber relative to and vertically, and are each smoothly connected to the guide rails A101 in the first pile chamber; the guide rails D105 are fixedly mounted on the side beams B24 and the middle beams B25 of the fourth pile chamber relative to and vertically, and are each smoothly connected to the guide rails B102 in the second pile chamber ( Fig.14 The guide rail number is not marked, please refer to Figure 2 ). In this way, the guide rails C104 and D105 can play a guiding role to ensure that the hammer 207 and the traction counterweight 204 are lifted and lowered smoothly in the vertical direction.

[0087] It should be noted that the number of guide rails C104 and guide rails D105 can be set according to actual needs, and the number of guide rails C104 and guide rails D105 is not limited here.

[0088] Optionally, the bottom pile frame 2 further includes a guide rail bracket 103, and the guide rail C104 is fixedly mounted on the side beam B24 and the middle beam B25 of the third pile chamber relative to and vertically respectively through the guide rail bracket 103, and each is smoothly connected to the guide rail A101 in the first pile chamber; the guide rail D105 is fixedly mounted on the side beam B24 and the middle beam B25 of the fourth pile chamber relative to and vertically respectively through the guide rail bracket 103, and each is smoothly connected to the guide rail B102 in the second pile chamber ( Fig.14 The guide rail number is not marked, please refer to Figure 2 ).

[0089] Improvement 2: The electromagnetic drive system of the self-propelled electromagnetic driven pile driver in this example is improved on the basis of the first embodiment. Since the pile driving stroke of the main pile frame 1 is limited, when the bottom pile frame 2 is set, the electromagnetic driven pile driving process must also be improved accordingly. Fig.10 and Fig.11 As shown, the electromagnetic drive system also includes a stator housing lifting device, which includes a housing counterweight 304, a housing counterweight slide 305, a slide rail 307, a traction rope 309, a pulley block B310 and a housing control motor 311; the slide rail 307 is arranged on the side beam A14 and the middle beam A15 of the second pile chamber, or is arranged on the side beam A14 and the middle beam A15 of the second pile chamber through a slide rail bracket 308, and extends downward to the fourth pile chamber, the housing counterweight 304 is slidably connected to the slide rail 307 through the housing counterweight slide 305; the stator housing 302 is slidably connected to the guide rail A101 through the housing frame 303, and the traction rope 309 is wound around the housing control motor 311 and the pulley block B310, one end of which is connected to the stator housing 302 or the housing frame 303, and the other end is connected to the housing counterweight 304 or the housing counterweight slide 305.

[0090] In one embodiment, Figures 9 to 13As shown, the stator housing lifting device also includes a movable thorn plate 313, a triangular stopper 314, a thorn plate bracket 315 and a push-pull member. Optionally, the push-pull member is a push rod or a pull rope. The movable thorn plate 313 is hinged with the thorn plate bracket 315, and the thorn plate bracket 315 is installed on the side beam A14 and the middle beam A15 of the first pile chamber. The triangular stopper 314 is fixed on the outer side of the stator housing 302. A compression spring (not shown in the figure) is provided between the movable thorn plate 313 and the thorn plate bracket 315. The push-pull member 316 is connected in series with each movable thorn plate 313. The movable thorn plate 313 cooperates with the triangular stopper 314, and the engagement and separation states are realized under the action of the compression spring and the push-pull member 316. Among them, the push rod or the pull rope is connected in series with each movable ratchet plate 313, a pulley is provided on the top of the main pile frame 1, and the pull rope 316 passes through the pulley and is connected in series with each movable ratchet plate 313. The movable ratchet plate 313 and the triangular stopper 314 are kept engaged under the action of the compression spring, and the two can be separated by pushing the push rod upward or pulling the pull rope 316 downward.

[0091] After the hammer 207 strikes the pile pipe 106, as the pile pipe 106 sinks, the stator housing 302, the hanger 212, the electromagnet 216 and the hammer 207 must also adjust their strokes accordingly, so that the hammer 207 and the pile pipe 106 maintain a preset striking stroke. Therefore, the position of the stator housing 302 is dynamic, and it should drop as the pile pipe 106 sinks.

[0092] Since the movable ratchet plate 313 and the ratchet plate bracket 315 are hinged, they can be engaged and disengaged under the action of the compression spring. When the hammer 207 is freed from the restraint of the traction counterweight 204 and falls at a high speed under electromagnetic drive, the electromagnetic drive generates a strong reaction force, which is blocked by the movable ratchet plate 313, so that the stator housing 302 cannot rush up and can only fall; therefore, when the hammer 207 needs to be lifted after completing the pile driving process, the stator housing 302 can move downward along the movable ratchet plate 313 under the drive of the housing control motor 311. By adjusting the controller program, the lifting height of the hammer 207 and the lowering height of the stator housing 302 can be adjusted, and the pile driving height and the pile driving strength can be adjusted. When it is necessary to change the pile, push the push rod upward or pull the pull rope 316 downward to retract the movable ratchet plate 313, and start the housing control motor 311 to lift the stator housing 302 to the required height. Therefore, the pile driving stroke and pile driving strength of the present invention can be automatically controlled to adapt to different working conditions and working environments. Therefore, the present invention can achieve multi-purpose use of one machine and replace pile drivers of different specifications.

[0093] In other embodiments, a stator housing lifting device may be provided on the basis of the first embodiment, so that the electromagnetic drive system in the first embodiment can be lifted and lowered under the action of the stator housing lifting device, thereby improving the pile striking strength of the hammer body 207.

[0094] Large pile pipes are up to 15 meters long. In the implementation process, in order to ensure that the pile pipe will not be distorted during high-speed pile driving, it is necessary to guide the sinking process of the pile pipe. Fig. 9 , Fig.10 and Fig.15 As described in the first embodiment, this embodiment further includes a pile pipe guide assembly arranged in the third pile chamber. The pile pipe guide assembly includes a pile pipe 106, a pile pipe frame 109, a fixed hoop 111 and a movable hoop 112; the pile pipe frame 109 is slidably connected to the guide rail C104, and the fixed hoop 111 is fixed to the pile pipe frame 109 and cooperates with the movable hoop 112 to fix the pile pipe 106.

[0095] In order to ensure that the hammer body 207 works in a vertical state, in one embodiment, the electromagnetic driven pile driver further includes a laser plumb measuring device 119 and a laser receiving device. The laser plumb measuring device 119 is arranged on the top of the main pile frame 1 or the bottom pile frame 2, and the laser receiving device is arranged on the bottom pile frame 2. The laser receiving device cooperates with the projection of the laser plumb measuring device 119. The laser plumb measuring device 119 is provided to ensure that the main pile frame 1 and the bottom pile frame 2 can maintain a vertical state with the ground, so as to ensure that the hammer body 207 and the traction counterweight 204 can move vertically, so as to minimize the friction resistance and the wear of the connecting parts.

[0096] In order to facilitate the transfer within the same construction site, in one embodiment, the electromagnetic driven pile driver further includes a walking mechanism. Fig.14 and Fig.17 As shown, the walking mechanism includes an adjustable leg 115, a steering wheel 116 and a driving wheel 117; the adjustable leg 115, the steering wheel 116 and the driving wheel 117 are arranged on the bottom longitudinal beam 28 or the bottom cross beam 27, and a cab is arranged at the bottom of the rear side of the third pile chamber, and the cab is provided with a steering wheel, an accelerator pedal and a brake pedal. A steering connecting rod is arranged between the two steering wheels 116, and the steering connecting rod is connected to the steering wheel and is controlled by it; a motor is arranged on the driving wheel 117, and the motor and the driving wheel 117 are driven by a reduction mechanism or a worm gear reduction transmission, and the operation of the motor is controlled by the accelerator pedal and the brake pedal.

[0097] Since the operation site may be uneven, an adjustable leg 115 is provided on the bottom pile frame 2, so as to expand the bearing surface of the bottom pile frame 2 and improve its stability, while ensuring that the main pile frame 1 and the bottom pile frame 2 remain vertical to the ground. High-strength bolts are provided on the adjustable leg 115. During operation, a small jack can be used to lift the bottom cross beam 27 or the bottom longitudinal beam 28 to make it out of contact with the ground, and then the high-strength nuts on each adjustable leg 115 are adjusted one by one to a suitable height until the laser plumb measuring device 119 described later coincides with the projection of the laser receiver, and then the high-strength nuts are locked and the jack is withdrawn.

[0098] The walking mechanism further includes a sliding platform 118 and a pile pipe presetting cylinder 120 disposed on the sliding platform 118 . The sliding platform 118 is movably disposed at the bottom of the bottom pile frame 2 . The pile pipe presetting cylinder 120 is used to carry the pile pipe 106 . The sliding platform 118 can slide into or out of the third pile chamber from the opening 20 .

[0099] To increase the traction force, as in the first embodiment, this embodiment also adopts a drum-type traction wheel 201. In this embodiment, the traction motor 221 and the traction wheel 201 can also be installed on the bottom cross beam 27 or the bottom longitudinal beam 28 in front of the fourth pile chamber (not shown in the figure). Although this increases the length of the traction rope 206 and the difficulty of installation, it is convenient for the installation and daily maintenance of the traction machine.

[0100] The main pile frame and bottom pile frame of the self-propelled electromagnetic drive pile driver are detachably connected and equipped with a walking mechanism, so it does not need to be used with a crawler pile driver. Therefore, it has a simple structure, is convenient for processing and transportation, has good maneuverability, and can independently perform tasks such as transfer, relocation, pile erection, and pile replacement, which can greatly reduce the cost of use and save a large amount of construction project investment (crawler pile drivers are expensive, costing up to millions of yuan).

[0101] The preparation work before piling in this embodiment:

[0102] 1. After the pile driver enters the site, first drive it to the predetermined piling location and align the midpoint of the third pile chamber with the pile pipe entry point;

[0103] 2. Adjust each adjustable leg 115 so that the light spot of the laser plumb measuring device 119 coincides with the center point of the laser receiver, and lock each adjustable leg 115;

[0104] 3. Hang the pile pipe 106 into the pile pipe pre-setting tube 120;

[0105] 4. Push the sliding platform 118 together with the pile pipe 106 into the third pile chamber so that the center of the pile pipe presetting cylinder 120 is aligned with the pile pipe entry point;

[0106] 5. Connect the hammer 207 and the pile pipe 106 with a steel wire rope, hang the pile pipe 106 out of the pile pipe presetting tube 120, withdraw the sliding platform 118 from the third pile chamber, and put the pile pipe 106 vertically downward into the pile point;

[0107] 6. Insert the pile pipe frame 109 together with the fixing hoop 111 and the buffer ring 113 into the pile pipe 106, and connect it to the guide rail C104 of the third pile chamber in a sliding manner, and fasten the movable hoop 112 to the fixing hoop 111 to fix the pile pipe 106. After the above preparations are completed, piling can be carried out.

[0108] 7. When it is necessary to change the pile, the movable thorn plate 313 is retracted with the push rod or the pull rope 316, and the housing control motor 311 is started to lift the stator housing 302 to the required height. The subsequent operation is the same as that of the pile entry.

[0109] In other embodiments, the hammer-off device may be a mechanical hammer-off device. Figure 6 and Figure 7 The mechanical hammer-off device includes a hook 211, a hanger 212, a hanger cross tube 213, an elastic member 214 and a stop frame 220. The hanger 212 is slidably connected to the side of the first pile chamber, the hanger cross tube 213 is fixed to the hanger 212, and the hanger cross tube 213 and the hanger 212 are suspended in the first pile chamber through a traction rope 206. The hook 211 is movably arranged on the hanger cross tube 213, and the hook 211 is used to hook the hammer 207. One end of the elastic member 214 is connected to the hook 211, and the other end is connected to the hanger 212. The stop frame 220 is arranged above the hook 211. When the hook 211 contacts the stop frame 220, the hook 211 rotates to separate the hook 211 from the hammer 207. In the process of lifting the hammer, the hook 211 hooks the hammer 207. Under the drive of the traction machine and the traction of the traction rope 206, the hammer 207 is lifted to a suitable height so that the hammer 207 and the pile pipe 106 maintain a preset height difference. After the hammer 207 is lifted to a certain height, the hook 211 contacts the stop frame 220. Since the hook 211 is movably arranged on the hanger cross tube 213, under the action of the stop frame 220, the hook 211 rotates and disengages from the hammer 207 to achieve the hammer-off action. After the hammer is off, under the action of the elastic member 214, the hook 211 rotates in the opposite direction and returns to its original state. After the hammer 207 completes the pile-driving action, the hook 211 can hook the hammer 207 again and drive the hammer 207 to move to a suitable height to complete the hammer-off action again. Further, the mechanical hammer-off device also includes a reinforcing plate 215, which is connected to the hook 211. In this way, deformation of the hook 211 is effectively prevented.

[0110] Optionally, the elastic member 214 is a spring; or, the elastic member 214 is an elastic steel plate. Of course, in other embodiments, the elastic member 214 may also be other components with the same function.

[0111] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0112] 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. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0113] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "set", "installed", "set on" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0114] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0115] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0116] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0117] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An electromagnetic driven pile driver, characterized in that: The electromagnetic driven pile driver comprises: The main pile frame (1) is provided with a first pile chamber and a second pile chamber which are longitudinally separated; A traction mechanism comprises a traction wheel (201), a pulley block A (202), a traction rope (206), a traction counterweight (204) and a hanger (212); the traction counterweight (204) is arranged in the second pile chamber and is slidably connected to the side of the second pile chamber; the traction wheel (201) is arranged in the main pile frame (1) and is used for transmission connection with the traction motor (221); the traction rope (206) is wound around the traction wheel (201) and the pulley block A (202); one end of the traction rope is connected to the traction counterweight (204), and the other end is connected to the hanger (212); The electromagnetic drive system comprises a flat plate stator (301) and a stator housing (302), wherein the flat plate stator (301) is installed on the inner side of the stator housing (302), the stator housing (302) is vertically arranged in the first pile chamber, and the hanger (212) is slidably connected to the inner side of the stator housing (302); The hammer removal device comprises a hammer body (207) and an electromagnet (216) for connecting to a power source, wherein the electromagnet (216) is insulated and connected to the hanger (212), and the hammer body (207) is arranged below the electromagnet (216) and electromagnetically cooperates with the electromagnet (216); the hammer body (207) is slidably connected to the inner side of the stator housing (302), and the outer side surface of the hammer body (207) is covered with a metal plate (210) and is air-gap-coordinated with the flat stator (301).

2. The electromagnetic driven pile driver according to claim 1, characterized in that: The electromagnetic drive system further comprises a stator housing lifting device, which comprises a housing counterweight (304), a housing counterweight slide (305), a slide rail (307), a traction rope (309), a pulley block B (310) and a housing control motor (311). The stator housing (302) is slidably connected to the side of the first pile chamber via a housing frame (303), and the hanger (212) is slidably connected to the inner side of the stator housing (302) via a pulley (209). The slide rail (307) is arranged on the side of the second pile chamber and extends downward, and the housing counterweight (304) is slidably connected to the slide rail (307) through the housing counterweight slide frame (305); the traction rope (309) is wound around the housing control motor (311) and the pulley block B (310), and is connected to the stator housing (302) or the housing frame (303), and the stator housing (302) is controlled by the movement of the housing control motor (311); The stator housing lifting device also includes a movable ratchet plate (313), a triangular stopper (314), a ratchet plate bracket (315) and a push-pull member; the movable ratchet plate (313) is hinged with the ratchet plate bracket (315), the ratchet plate bracket (315) is installed on the side of the first pile chamber, the triangular stopper (314) is fixed on the outer side of the stator housing (302), a compression spring is provided between the movable ratchet plate (313) and the ratchet plate bracket (315), the push-pull member is connected in series with each movable ratchet plate (313), the movable ratchet plate (313) cooperates with the triangular stopper (314), and the engagement and separation states are realized under the action of the compression spring and the push-pull member.

3. The electromagnetic driven pile driver according to claim 1 or 2, characterized in that: The traction mechanism further comprises a traction motor (221), a spline (222), a convex head (223) and a traction frame (224); the traction wheel (201) is transmission-connected to the traction motor (221) via the spline (222); a spiral rope groove matching the traction rope (206) is provided on the traction wheel (201); the convex head (223) is fixed to the traction frame (224) and matches the spiral rope groove on the traction wheel (201).

4. The electromagnetic driven pile driver according to claim 3, characterized in that: The electromagnetic driven pile driver further comprises a controller, a counterweight sensor (218) and a magnetic strip (219). The magnetic strip (219) is arranged on the side of the second pile chamber. The counterweight sensor (218) is arranged on the traction counterweight (204) and cooperates with the magnetic strip (219). The counterweight sensor (218) is electrically connected to the controller. The traction motor (221) and the electromagnet (216) are controlled by signals from the controller.

5. The electromagnetic driven pile driver according to claim 4, characterized in that: The main pile frame (1) comprises four columns A (11), two center columns A (12), two or more cross beams A (13), two or more side beams A (14) and two or more center beams A (15), wherein the four columns A (11) are symmetrically arranged vertically at the four corners of the main pile frame (1); on the left side or right side of the main pile frame (1), the columns A (11) are horizontally connected by two or more side beams A (14); on the front side and the rear side of the main pile frame (1), the two columns A (11) are connected to the main pile frame (1). 1) are transversely connected above and below by a transverse beam A (13), two center columns A (12) are vertically arranged opposite to each other in the middle of the transverse beam A (13), the center column A (12) and the two columns A (11) are transversely connected by two or more transverse beams A (13), and the center columns A (12) are transversely connected by two or more center beams A (15); the center beams A (15) divide the main pile frame (1) and enclose the first pile chamber and the second pile chamber; The electromagnetic driven pile driver further comprises at least two guide rails A (101) and at least two guide rails B (102), wherein the guide rails A (101) are fixedly mounted relatively and vertically on the side beams A (14) and the middle beam A (15) of the first pile chamber, or the guide rails A (101) are fixedly mounted relatively and vertically on the side beams A (14) and the middle beam A (15) of the first pile chamber via guide rail brackets (103); the guide rails B (102) are fixedly mounted relatively and vertically on the side beams A (14) and the middle beam A (15) of the second pile chamber, or the guide rails B (102) are fixedly mounted relatively and vertically on the side beams A (14) and the middle beam A (15) of the second pile chamber via guide rail brackets (103); and the traction counterweight (204) is slidably connected to the guide rails B (102) via a counterweight slide (205).

6. A self-propelled electromagnetic driven pile driver, characterized in that: The invention comprises a bottom pile frame (2) and an electromagnetic driven pile driver as claimed in any one of claims 1 to 5, wherein the bottom pile frame (2) is provided with a third pile chamber corresponding to the first pile chamber and a fourth pile chamber corresponding to the second pile chamber, the front side of the third pile chamber is provided with an opening (20), and the top of the bottom pile frame (2) is detachably connected to the bottom of the main pile frame (1).

7. The self-propelled electromagnetic driven pile driver according to claim 6, characterized in that: The bottom pile frame (2) comprises a bottom cross beam (27), a bottom longitudinal beam (28) and a front cross beam (29) arranged in front of the bottom cross beam (27), and the two ends of the bottom cross beam (27) and the front cross beam (29) are respectively fixedly connected to the bottom longitudinal beam (28) arranged oppositely; the bottom pile frame (2) also comprises four upright columns B (21), two middle upright columns B (22) and two or more cross beams B (23), side beams B (24) and a middle beam B (25), and the four upright columns B (21) and the two middle upright columns B (22) are respectively fixedly connected to the bottom longitudinal beam (28) arranged oppositely; The columns B (21) are vertically arranged at the four corners of the bottom cross beam (27), and the two middle columns B (22) are respectively vertically arranged on the bottom cross beam (27) between the columns B (21) on the same side; at the two side parts of the bottom pile frame (2), the columns B (21) are connected by two or more side beams B (24), and at the middle longitudinal part of the bottom pile frame (2), the middle columns B (22) are connected by two or more middle beams B (25), and the middle columns B (22) connect the bottom The pile frame (2) is divided into the third pile chamber and the fourth pile chamber; at the rear side of the bottom pile frame (2), the upper parts of the two upright posts B (21) are transversely connected by a cross beam B (23), or the upper and lower parts of the two upright posts B (21) are each connected by a cross beam B (23); at the middle part of the two upright posts B (21) at the rear side of the bottom pile frame (2), the upright posts B (21) and the middle posts B (22) are connected by a cross beam B (23). Two or more of the cross beams B (23) are connected transversely; at the front side of the bottom pile frame (2), the upper parts of the two columns B (21) are connected by a cross beam B (23), or the upper and lower parts of the two columns B (21) are connected by a cross beam B (23); at the front side of the bottom pile frame (2) corresponding to the fourth pile chamber, the columns B (21) and the middle column B (22) are connected by two or more cross beams B (23); The bottom pile frame (2) further comprises at least two guide rails C (104) and at least two guide rails D (105), wherein the guide rails C (104) are fixedly mounted on the side beams B (24) and the middle beams B (25) of the third pile chamber in a relative and vertical relationship and are used to be smoothly connected to the guide rails A (101) in the first pile chamber; the guide rails D (105) are fixedly mounted on the side beams B (24) and the middle beams B (25) of the fourth pile chamber in a relative and vertical relationship and are used to be smoothly connected to the guide rails B (102) of the second pile chamber; Alternatively, the bottom pile frame (2) further comprises a guide rail bracket (103), wherein the guide rail C (104) is fixedly mounted relatively and vertically to the side beam B (24) and the middle beam B (25) of the third pile chamber via the guide rail bracket (103), and is used to be smoothly connected to the guide rail A (101) of the first pile chamber; and the guide rail D (105) is fixedly mounted relatively and vertically to the side beam B (24) and the middle beam B (25) of the fourth pile chamber via the guide rail bracket (103), and is used to be smoothly connected to the guide rail B (102) of the second pile chamber.

8. The self-propelled electromagnetic driven pile driver according to claim 7, characterized in that: The electromagnetic driven pile driver further comprises a pile pipe frame (109), a fixed hoop (111) and a movable hoop (112) arranged in the first pile chamber or the third pile chamber; the pile pipe frame (109) is slidably connected to one of the guide rails A (101) and C (104); the fixed hoop (111) is fixed to the pile pipe frame (109) and cooperates with the movable hoop (112) to fix the pile pipe (106); a buffer ring (113) is arranged between the fixed hoop (111) and the movable hoop (112) and the pile pipe (106).

9. The self-propelled electromagnetic driven pile driver according to claim 8, characterized in that: The self-propelled electromagnetic driven pile driver further comprises a walking mechanism, wherein the walking mechanism comprises an adjustable leg (115), a steering wheel (116) and a driving wheel (117); the adjustable leg (115), the steering wheel (116) and the driving wheel (117) are arranged on the bottom longitudinal beam (28) or the bottom cross beam (27); The walking mechanism further comprises a sliding platform (118) and a pile pipe presetting cylinder (120) arranged on the sliding platform (118); the sliding platform (118) is movably arranged at the bottom of the bottom pile frame (2); the pile pipe presetting cylinder (120) is used to carry the pile pipe (106); and the sliding platform (118) can slide into or out of the third pile chamber from the opening (20).

10. The self-propelled electromagnetic driven pile driver according to any one of claims 6 to 9, characterized in that: The self-propelled electromagnetic driven pile driver further comprises a laser plumb measuring device (119) and a laser receiving device, wherein the laser plumb measuring device (119) is arranged on the top of the main pile frame (1), and the laser receiving device is arranged on the bottom pile frame (2), and the laser receiving device cooperates with the projection of the laser plumb measuring device (119).

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