A double-holding and double-pressure hydraulic static pile driver

Abstract

The present invention provides a double-holding and double-pressure hydraulic static pile driver, comprising a machine body and a walking and steering mechanism, a lifting mechanism, a double-holding pile clamp and a double-pressure pile pressing system and a control system installed on the machine body, wherein the walking and steering mechanism is connected to the machine body and drives the machine body and the components on the machine body to move, and the control system is electrically connected to the double-holding pile clamp and the double-pressure pile pressing system, and the double-holding pile clamp and the double-pressure pile pressing system comprise two pile clamp boxes and at least one pile clamp oil cylinder and a pile pressing oil cylinder connected to each pile clamp box. The pile driver of the present invention has complete overall functions and a compact structure, which improves the applicability of the pile driver; realizes continuous pile pressing and pulling, and reduces the workload of the crane; does not affect the installation space of the two pile clamp boxes, and the movement of each device does not interfere with each other.

Description

Technical Field

[0001] The invention relates to the technical field of pile driver equipment, in particular to a double-holding and double-pressing hydraulic static pile driver. Background Art

[0002] Static pressure construction of precast piles is a new type of environmentally friendly pile foundation construction method that uses static pressure to steadily press precast piles into the foundation. At present, static pressure pile construction has been widely used in domestic pile foundation construction, and in addition to static pressure piles for precast piles, H-shaped steel piles, steel pipe piles and other special-shaped steel piles also generally use static pressure pile construction. Hydraulic static construction has the advantages of clean site, no noise, no vibration, no sewage, no smoke and dust, etc. It is suitable for operations in urban areas with special requirements for the environment, and the pile pressing speed is fast and the efficiency is high.

[0003] At present, with the widespread use of hydraulic static pile drivers in the construction of pipe-sinking cast-in-place piles and pipe-sinking compaction piles, the hydraulic static pile driver is used to quickly press steel pipe piles into the foundation to form holes, and then the steel pipe piles need to be quickly pulled out and then poured with concrete or plain concrete to form piles. When using traditional hydraulic static pile drivers to press or pull steel pipes, there is only one pile clamp box and a pile driving system, so the return time of pile pressing and pulling is long, and pile pressing or pulling cannot be continuous, resulting in low construction efficiency. Summary of the invention

[0004] In view of the above-mentioned problems existing in the prior art, the purpose of the present invention is to provide a double-holding and double-pressure hydraulic static pile driver, which has complete overall functions and compact structure, thereby improving the applicability of the pile driver; realizing continuous pile driving and pile pulling, reducing the workload of the crane; and not affecting the installation space of the two pile clamping boxes, and the movement of each device does not interfere with each other.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A double-holding and double-pressure hydraulic static pile driver comprises a machine body and a travel and steering mechanism, a jacking mechanism, a double-holding pile clamping and double-pressure pile pressing system and a control system installed on the machine body. The travel and steering mechanism is connected to the machine body and drives the machine body and components on the machine body to move. The control system is electrically connected to the double-holding pile clamping and double-pressure pile pressing system. The double-holding pile clamping and double-pressure pile pressing system comprises two pile clamping boxes and at least one pile clamping cylinder and a pile pressing cylinder connected to each pile clamping box.

[0007] As a further improvement of the above technical solution:

[0008] The double-clamp pile and double-pressure pile system includes a column frame, an upper pile clamp box, a lower pile clamp box, at least two upper pile pressure cylinders and at least two lower pile pressure cylinders. The column frame is a rectangular parallelepiped. The upper pile clamp box and the lower pile clamp box are arranged in parallel and spaced apart in the column frame. One end of the upper pile pressure cylinder is connected to the column frame, and the other end is connected to and drives the upper pile clamp box to move. One end of the lower pile pressure cylinder is connected to the column frame, and the other end is connected to and drives the lower pile clamp box to move.

[0009] The column frame includes four columns, two upper beams and two lower beams. The four columns are arranged in parallel and spaced apart to form four edges of a rectangular parallelepiped. The two upper beams are connected in parallel and spaced apart at the top of the column frame, and the two lower beams are connected in parallel and spaced apart at the middle of the column frame. The upper beams and the lower beams are skewed and perpendicular.

[0010] The two ends of an upper crossbeam are respectively connected to the tops of two of the columns, the two ends of another upper crossbeam are respectively connected to the tops of the other two columns, the two ends of a lower crossbeam are respectively connected to the middles of two of the columns, the two ends of another lower crossbeam are respectively connected to the middles of the other two columns, and the planes where the two lower crossbeams are located are parallel and spaced apart from the planes where the two upper crossbeams are located.

[0011] The column comprises a lower column and an upper column, the bottom end of the lower column is connected to the body of the pile driver, and the top end of the lower column is connected to the bottom end of the upper column.

[0012] The system includes two upper pile-pressing oil cylinders, which are respectively installed in the middle of two upper crossbeams, and the cylinder bodies of the upper pile-pressing oil cylinders are installed on the upper crossbeams. The piston rods of the upper pile-pressing oil cylinders face downward and are hinged to the upper pile clamping box, and the straight line where the piston rods of the upper pile-pressing oil cylinders are located is parallel to the column.

[0013] The two pile-pressing cylinders are respectively installed in the middle of the two lower beams, the cylinder bodies of the pile-pressing cylinders are installed on the lower beams, the piston rods of the pile-pressing cylinders face downward and are hinged to the lower pile clamping box, and the straight line where the piston rods of the pile-pressing cylinders are located is parallel to the columns.

[0014] A track group is arranged on each column, and the length direction of the track group is parallel to the length direction of the column. Four guide wheel groups are arranged on the upper pile clamp box, and the four guide wheel groups respectively contact the track groups on the four columns and roll along the track groups.

[0015] Each track group includes two parallel tracks, each track is parallel to the length direction of the column, the column is a rectangular parallelepiped, and the two tracks of each track group are respectively installed on two adjacent sides of the column, and the two adjacent sides of the column are closer to the center of the upper pile box than other sides.

[0016] Each guide wheel assembly includes at least two guide wheels and at least two guide wheel seats. The guide wheel seats are installed on the upper pile clamp box. Each guide wheel is rotatably installed on a guide wheel seat. The guide wheel contacts the track and rolls along a track. Each track has a guide wheel that matches it.

[0017] The walking and steering mechanism includes a longitudinal walking mechanism, a transverse walking mechanism and a steering mechanism.

[0018] The pile driver also includes a crane system and a control system installed on the machine body.

[0019] The jacking mechanism and the crane system are both electrically connected to the control system.

[0020] The pile driver also includes a counterweight system installed on the machine body.

[0021] There is a cockpit at one end of the upper fuselage.

[0022] The beneficial effects of the present invention are as follows: the pile driver has perfect overall functions and compact structure, and the jacking mechanism improves the applicability of the pile driver; the two pile clamping boxes and the pile clamping cylinders connected thereto, and the upper pile pressing cylinder and the lower pile pressing cylinder cooperating with the two pile clamping boxes form a double-holding and double-pressing structure, realizing continuous pile pressing and pulling, reducing the workload of the crane and improving work efficiency; the upper crossbeam and the lower crossbeam are arranged vertically in different planes, and the upper pile pressing cylinder and the lower pile pressing cylinder pass through the upper crossbeam and the lower crossbeam respectively, which does not affect the installation space of the two pile clamping boxes, and the movement of each device does not interfere with each other, thereby reducing the height of the column frame and making the overall structure more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of a double clamping pile and double pressure pile system according to an embodiment of the present invention;

[0025] Figure 3 for Figure 2 Enlarged schematic diagram at point A in the middle. DETAILED DESCRIPTION

[0026] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0027] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0028] A double-holding and double-pressure hydraulic static pile driver, such as Figures 1 to 3 As shown, it includes a fuselage 1 and a walking and steering mechanism, a jacking mechanism 5, a double-holding pile clamping and double-pressure pile system 6 and a control system 8 installed on the fuselage 1. The walking and steering mechanism is connected to the fuselage 1 and drives the fuselage 1 and the components on the fuselage 1 to move. The control system 8 is electrically connected to the double-holding pile clamping and double-pressure pile system 6. The double-holding pile clamping and double-pressure pile system 6 includes two pile clamping boxes and at least one pile clamping cylinder and a pile pressing cylinder connected to each pile clamping box.

[0029] A cab 11 is provided at one end of the upper portion of the fuselage 1 , and an operator operates the press in the cab 11 .

[0030] The walking and steering mechanism includes a longitudinal walking mechanism 2, a transverse walking mechanism 3 and a steering mechanism. The longitudinal walking mechanism 2 drives the fuselage 1 to walk longitudinally, and the transverse walking mechanism 3 drives the fuselage 1 to walk transversely. The longitudinal walking direction is perpendicular to the transverse walking direction, and the steering mechanism drives the fuselage 1 to turn. The longitudinal walking mechanism 2, the transverse walking mechanism 3 and the steering mechanism all adopt technical solutions in the prior art, which will not be described in detail here.

[0031] There are four jacking mechanisms 5, which are respectively arranged at the four corners of the fuselage 1. One end of the jacking mechanism 5 is inserted into the capstan hole of the fuselage 1 and connected to the fuselage 1, and the other end is connected to the longitudinal walking mechanism 2 through the jacking cylinder. The four jacking mechanisms 5 cooperate to level the fuselage 1. The jacking mechanism 5 adopts the solution in the prior art and does not affect the technical solution protected by the present claim, so it will not be repeated here.

[0032] The double-clamp pile and double-pressure pile system 6 is installed in the middle of the fuselage 1, including a column frame, an upper clamp pile box 63, a lower clamp pile box 67, two upper pressure pile cylinders 61, two lower pressure pile cylinders 65, two groups of clamp pile cylinders 64, two working platforms 69 and a pull rod 60.

[0033] The column frame is a rectangular parallelepiped frame structure. Specifically, the column frame includes four columns, two upper beams 62 and two lower beams 66. The four columns are arranged in parallel and spaced apart to form four edges of the rectangular parallelepiped. Preferably, each column includes a lower column 68 and an upper column, the bottom end of the lower column 68 is connected to the body of the pile driver, and further, the lower column 68 is welded to the body, and the top end of the lower column 68 and the bottom end of the upper column are connected by a pin shaft, so that the lower column 68 and the upper column can be disassembled and assembled, which is convenient for the installation and maintenance of the device. The lower column 68 and the upper column are positioned by a conical pin positioning mechanism during installation to achieve accurate installation and connection. The lower column 68 and the upper column are rectangular parallelepiped, preferably, a long rod-shaped rectangular parallelepiped, that is, a rectangular parallelepiped whose length is much greater than the width and thickness.

[0034] Two upper cross beams 62 are connected to the top of the columns, and the two ends of one upper cross beam 62 are respectively connected to the top of two of the columns, and the two ends of the other upper cross beam 62 are respectively connected to the top of the other two columns. Specifically, the two upper cross beams 62 are connected to the top of the upper columns, and the two ends of one upper cross beam 62 are respectively connected to the top of two of the upper columns, and the two ends of the other upper cross beam 62 are respectively connected to the top of the other two upper columns, so that the two upper cross beams 62 are arranged in parallel and spaced apart. The upper cross beam 62 and the upper column are connected by a pin shaft to realize the detachable assembly and disassembly of the upper cross beam 62 and the upper column. The upper cross beam 62 and the upper column are positioned by a conical pin positioning mechanism when they are installed.

[0035] Two lower cross beams 66 are connected to the middle of the columns, two ends of one lower cross beam 66 are connected to the middle of two of the columns, and two ends of another lower cross beam 66 are connected to the middle of the other two columns. Specifically, two lower cross beams 66 are connected to the middle of the upper columns, two ends of one lower cross beam 66 are connected to the middle of two of the upper columns, and two ends of another lower cross beam 66 are connected to the middle of the other two upper columns, so that the two lower cross beams 66 are arranged in parallel and spaced apart. The plane where the two lower cross beams 66 are located is parallel and spaced apart from the plane where the two upper cross beams 62 are located, and the upper cross beams 62 and the lower cross beams 66 are perpendicular. In other words, the straight line where the upper cross beam 62 is located and the straight line where the lower cross beam 66 is located are two skew perpendicular straight lines.

[0036] The upper pile clamping box 63 and the lower pile clamping box 67 for clamping and loosening piles are arranged in parallel and spaced apart in the column frame. One end of the upper pile pressing cylinder 61 is connected to the column frame, and the other end is connected to and drives the upper pile clamping box 63 to move. One end of the lower pile pressing cylinder 65 is connected to the column frame, and the other end is connected to and drives the lower pile clamping box 67 to move.

[0037] The two upper pile-pressing cylinders 61 are respectively installed at the middle of the two upper cross beams 62. Specifically, the cylinder bodies of the upper pile-pressing cylinders 61 are installed on the upper cross beam 62, and the piston rods of the upper pile-pressing cylinders 61 face downward and are hinged to the upper clamping box 63. The straight line where the piston rods of the upper pile-pressing cylinders 61 are located is parallel to the column. Specifically, the upper pile-pressing cylinders 61 pass through the upper cross beam 62 to make the overall device more compact.

[0038] The two pile pressing cylinders 65 are respectively installed in the middle of the two lower beams 66. Specifically, the cylinder bodies of the pile pressing cylinders 65 are installed on the lower beams 66, and the piston rods of the pile pressing cylinders 65 face downward and are hinged to the lower pile clamping box 67. The straight line where the piston rods of the pile pressing cylinders 65 are located is parallel to the column. The pile pressing cylinders 65 pass through the lower beams 66.

[0039] The pile to be operated passes through the upper pile clamping box 63 and the lower pile clamping box 67. The two groups of pile clamping cylinders 64 are respectively connected to and drive the upper pile clamping box 63 and the lower pile clamping box 67 to clamp or loosen the pile.

[0040] A movable pair is formed between the upper pile clamp box 63 and / or the lower pile clamp box 67 and the column. The upper pile clamp box 63 and the lower pile clamp box 67 adopt the pile clamp box structure in the prior art, preferably, the patent technical solution disclosed by the applicant (application number: 2013104737084), each column is provided with a track group, and the length direction of the track group is parallel to the length direction of the column. Each track group includes two parallel tracks, and each track is parallel to the length direction of the column. The two tracks of each track group are respectively installed on two adjacent sides of the column, and the two adjacent sides of the column are closer to the center of the upper pile clamp box 63 than other sides. Specifically, each track includes an upper track and a lower track, and the upper track and the lower track do not overlap and are located on the same straight line. The upper track is arranged on the upper column, and the lower track is arranged on the lower column 68. The two upper tracks of each track group are respectively installed on two adjacent sides of the upper column, and the two adjacent sides of the upper column are closer to the upper pile clamp box 63 than other sides. Similarly, the two lower rails of each rail group are respectively installed on two adjacent side surfaces of the lower column 68, and the two adjacent side surfaces of the lower column 68 are closer to the lower clamping box 67 than other side surfaces.

[0041] Four guide wheel groups are provided on the upper pile clamp box 63, and the four guide wheel groups are matched with the track groups on the four columns respectively. Each guide wheel group includes at least two guide wheels and at least two guide wheel seats, and the guide wheel seats are installed on the upper pile clamp box 63. Each guide wheel is rotatably installed on a guide wheel seat, and the guide wheel contacts the track and rolls along a track, and each track has a guide wheel matched with it.

[0042] The lower pile clamping box 67 is also provided with four sets of guide wheel groups. The installation and matching method of the guide wheel groups is the same as that of the upper pile clamping box 63, which will not be repeated here.

[0043] The guide wheel assembly and the track assembly form a guide mechanism, so that the upper pile clamping box 63 and / or the lower pile clamping box 67 can move smoothly in a defined direction.

[0044] The two working platforms 69 are respectively located on two opposite sides of the rectangular column frame, and the working platforms 69 are platforms for operators to perform installation, maintenance, inspection and other operations.

[0045] The two tie rods 60 are respectively located on two opposite sides of the rectangular column frame, and the two tie rods 60 are respectively located on the same side as the two working platforms 69, and the tie rods 60 are located above the working platforms 69. The two ends of a tie rod 60 are respectively connected to an upper column. The function of the tie rod 60 is to adjust the distance between the two columns when installing the upper cross beam 62, so as to facilitate the accurate installation of the upper cross beam 62.

[0046] The upper pile-pressing cylinder 61, the lower pile-pressing cylinder 65, the pile-clamping cylinder 64, the lifting mechanism 5, and the crane system 9 are all electrically connected to the control system 8, and the operator operates and controls the actions of each component through the control system 8. Specifically, the control system 8 includes a command input module, a signal processing module, a signal output module, and a display module. The command input module is used for the operator to input commands. The signal processing module processes and identifies the commands input by the operator and transmits them to the corresponding equipment through the signal output module. The corresponding equipment completes the action command, and the display module is used to display the status of each device. The display module and the command input module are located in the cab 11 for the convenience of the operator to watch and operate. The control system 8 is used to realize the action control of the upper pile-pressing cylinder 61, the lower pile-pressing cylinder 65, and the pile-clamping cylinder 64 in the double-holding and double-pressure pile-pressing system 6.

[0047] It should be noted that the technical solution of the crane system 9 and the technical solution of the control system 8 controlling the upper pile pressure cylinder 61, the lower pile pressure cylinder 65, the pile clamping cylinder 64, the jacking mechanism 5, and the crane system 9 can be achieved through existing technologies and do not affect the technical solution to be protected, and will not be repeated here.

[0048] The counterweight system 10 increases the overall weight of the fuselage 1 and balances the gravity distribution between the various components, so that the overall force on the fuselage 1 is uniform, improving the overall stability of the pile driver and preventing the fuselage 1 from being unevenly stressed and affecting the operation when the equipment is running.

[0049] The working principle of the present invention is as follows: when pressing piles, the operator in the cab 11 controls the walking and steering mechanism to drive the machine body 1 to move to the target position so that the part to be pressed piles is located directly below the double-clamp pile and double-pressure pile system 6, and then controls the jacking mechanism 5 to move to level the machine body 1. After the above preparations are completed, the control system 8 controls the crane system 9 to lift the pile body to be constructed and move it directly above the double-clamp pile and double-pressure pile system 6, and lower the pile body to pass through the lower and upper clamping pile boxes 63, and then the control system 8 controls the pile clamping cylinders 64, and the two groups of pile clamping cylinders 64 respectively drive the upper clamping pile box 63 to clamp and hold the pile body, and the lower clamping pile box 67 to release, and the crane system 9 is cancelled. Then the upper pile pressing cylinder 61 drives the upper clamping pile box 63 to move downward, and the pile body passes through the lower clamping pile box 67 at the same time. When the upper pile-pressing oil cylinder 61 completes its descending stroke, the lower pile clamping box 67 clamps and holds the pile body, and the upper pile clamping box 63 releases the pile body, and the lower pile-pressing oil cylinder 65 drives the lower pile clamping box 67 and the pile body to move downward, while the upper pile-pressing oil cylinder 61 drives the upper pile clamping box 63 to move upward to the upper pile-pressing oil cylinder 61 to complete its ascending stroke. When the lower pile-pressing oil cylinder 65 completes its descending stroke, the upper pile clamping box 63 clamps and holds the pile body, and the lower pile clamping box 67 releases the pile body, and the above steps are repeated until the pile body is pressed in, thus achieving continuous pile pressing.

[0050] When pulling piles, the control system 8 controls the pile clamping cylinders 64, and the two groups of pile clamping cylinders 64 drive the lower pile clamping box 67 to clamp and hold the pile body, and the upper pile clamping box 63 to release. Then the lower pile pressing cylinder 65 drives the lower pile clamping box 67 and the pile body to move upward, and the pile body passes through the upper pile clamping box 63 at the same time. After the ascending stroke of the lower pile pressing cylinder 65 is completed, the upper pile clamping box 63 clamps and holds the pile body, and the lower pile clamping box 67 releases the pile body. The upper pile pressing cylinder 61 drives the upper pile clamping box 63 and the pile body to move upward, and at the same time, the lower pile pressing cylinder 65 drives the lower pile clamping box 67 to move down to the lower pile pressing cylinder 65 to complete the descending stroke. When the ascending stroke of the upper pile pressing cylinder 61 is completed, the lower pile clamping box 67 clamps and holds the pile body, and the upper pile clamping box 63 releases the pile body. Repeat the above steps until the pile body is pulled out, so that continuous pile pulling is achieved, and the pile pulling process does not require the assistance of a crane. When the pile body is pulled out, the crane system 9 is controlled to start and the pile body is lifted away from the pile driver.

[0051] It should be noted that the pile clamping cylinder 64 drives the upper pile clamping box 63 or the lower pile clamping box 67 connected thereto, so that the upper pile clamping box 63 and / or the lower pile clamping box 67 clamps and holds the pile body or releases the pile body.

[0052] Finally, it is necessary to explain here that the above embodiments are only used to further illustrate the technical solution of the present invention in detail and cannot be understood as limiting the scope of protection of the present invention. Some non-essential improvements and adjustments made by technicians in this field based on the above content of the present invention all fall within the scope of protection of the present invention.

Claims

1. A double-holding and double-pressure hydraulic static pile driver, characterized in that: The invention comprises a machine body (1), a walking and steering mechanism, a lifting mechanism (5), a double-clamping pile and double-pressure pile system (6) and a control system (8) installed on the machine body (1), wherein the walking and steering mechanism is connected to the machine body (1) and drives the machine body (1) and the components on the machine body (1) to move, and the control system (8) is electrically connected to the double-clamping pile and double-pressure pile system (6), and the double-clamping pile and double-pressure pile system (6) comprises two clamping pile boxes and at least one clamping pile oil cylinder and a pile pressure oil cylinder connected to each clamping pile box; The double-clamping pile and double-pressure pile system (6) comprises a column frame, an upper pile clamping box (63), a lower pile clamping box (67), at least two upper pile pressure cylinders (61) and at least two lower pile pressure cylinders (65); the column frame is in a rectangular parallelepiped shape; the upper pile clamping box (63) and the lower pile clamping box (67) are arranged in parallel and spaced apart in the column frame; one end of the upper pile pressure cylinder (61) is connected to the column frame and the other end is connected to and drives the upper pile clamping box (63) to move; one end of the lower pile pressure cylinder (65) is connected to the column frame and the other end is connected to and drives the lower pile clamping box (67) to move; The column frame comprises four columns, two upper beams (62) and two lower beams (66), the four columns are arranged in parallel and spaced apart to form four edges of a rectangular parallelepiped, the two upper beams (62) are connected in parallel and spaced apart at the top of the column frame, the two lower beams (66) are connected in parallel and spaced apart at the middle of the column frame, and the upper beams (62) and the lower beams (66) are skewed and perpendicular; Two ends of an upper crossbeam (62) are respectively connected to the tops of two of the columns, two ends of another upper crossbeam (62) are respectively connected to the tops of the other two columns, two ends of a lower crossbeam (66) are respectively connected to the middles of the two columns, and two ends of another lower crossbeam (66) are respectively connected to the middles of the other two columns, and the planes where the two lower crossbeams (66) are located are parallel and spaced from the planes where the two upper crossbeams (62) are located; The column comprises a lower column (68) and an upper column. The bottom end of the lower column (68) is connected to the body of the pile driver, and the top end of the lower column (68) is connected to the bottom end of the upper column.

2. The double-holding and double-pressure hydraulic static pile driver according to claim 1 is characterized in that: The system comprises two upper pile-pressing oil cylinders (61), the two upper pile-pressing oil cylinders (61) being respectively mounted at the middle of two upper cross beams (62), the cylinder bodies of the upper pile-pressing oil cylinders (61) being mounted on the upper cross beams (62), the piston rods of the upper pile-pressing oil cylinders (61) facing downward and being hinged to the upper pile clamping box (63), and the straight line where the piston rods of the upper pile-pressing oil cylinders (61) are located being parallel to the upright column.

3. The double-holding and double-pressure hydraulic static pile driver according to claim 2 is characterized in that: The two pile pressing cylinders (65) are respectively installed at the middle of the two lower beams (66). The cylinder bodies of the pile pressing cylinders (65) are installed on the lower beams (66). The piston rods of the pile pressing cylinders (65) face downward and are hinged to the lower pile clamping box (67). The straight line where the piston rods of the pile pressing cylinders (65) are located is parallel to the column.

4. The double-holding and double-pressure hydraulic static pile driver according to claim 1 is characterized in that: Each column is provided with a track group, the length direction of the track group is parallel to the length direction of the column, and the upper pile clamp box (63) is provided with four guide wheel groups, which respectively contact the track groups on the four columns and roll along the track groups.

5. The double-holding and double-pressure hydraulic static pile driver according to claim 4 is characterized in that: Each track group includes two parallel tracks, each track is parallel to the length direction of the column, the column is rectangular, and the two tracks of each track group are respectively installed on two adjacent side surfaces of the column, and the two adjacent side surfaces of the column are closer to the center of the upper pile clamp box (63) than other side surfaces.

6. The double-holding and double-pressure hydraulic static pile driver according to claim 5 is characterized in that: Each guide wheel assembly comprises at least two guide wheels and at least two guide wheel seats, the guide wheel seats are mounted on the upper pile clamp box (63), each guide wheel is rotatably mounted on a guide wheel seat, the guide wheel contacts a track and rolls along a track, and each track has a guide wheel matched therewith.

7. The double-holding and double-pressure hydraulic static pile driver according to claim 1 is characterized in that: The travel and steering mechanism comprises a longitudinal travel mechanism (2), a transverse travel mechanism (3) and a steering mechanism.

8. The double-holding and double-pressure hydraulic static pile driver according to claim 1 is characterized in that: The pile driver also includes a crane system (9) and a control system (8) installed on the machine body (1).

9. The double-holding and double-pressure hydraulic static pile driver according to claim 8 is characterized in that: The lifting mechanism (5) and the crane system (9) are both electrically connected to the control system (8).

10. The double-holding and double-pressure hydraulic static pile driver according to claim 1, characterized in that: The pile driver further comprises a counterweight system (10) mounted on the machine body (1).

11. The double-holding and double-pressure hydraulic static pile driver according to claim 1, characterized in that: A cab (11) is provided at one end of the upper part of the fuselage (1).

Images