Stirring pile planting machine and construction method

Abstract

The invention provides a stirring pile planting machine and a construction method, the stirring pile planting machine comprises a machine body platform, an upper vehicle platform and a vertical mast mechanism, the upper vehicle platform is rotatably arranged at one end of the machine body platform, and the upper vehicle platform comprises an upper vehicle platform body, a pile pressing platform arranged at one end of the upper vehicle platform body and a stand column assembly hinged to the other end of the upper vehicle platform body; the stand column assembly comprises a stirring power head and a stand column body; the stirring center of the stirring power head and the pile clamping center of the pile pressing table are symmetrically distributed about the rotation center of the upper vehicle platform body. The mast erecting mechanism is arranged between the pile pressing table and the stand column assembly and used for placing the stand column assembly in a horizontal state or a vertical state; the pile alignment difficulty can be reduced, and the installation safety can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of pile foundation construction, and in particular to a mixing pile driver and a construction method. Background Art

[0002] The mixing pile construction method is mainly used in the construction of muddy geology with high water content. The existing construction method usually uses a hydraulic static pile driver + pile frame for split machine construction. The split machine construction method is to first align the pile frame with the pile point, mix it to the design requirements and then move it away, then move the pile driver over to re-align the pile point and plant the pile to the design requirements, that is, the construction of the pile point is completed; this construction method has the following defects:

[0003] 1. After mixing, the pile point is destroyed by moving away, and it is difficult for the pile driver to re-position the pile point;

[0004] 2. Two devices are required for construction, which is costly;

[0005] 3. Occupies a large area;

[0006] 4. There are many operators.

[0007] Existing all-in-one machine construction usually uses a mixing pile driver to perform translational construction. For example, a Chinese patent with application number 202111314379.X discloses a mixing static pile driver. During construction,

[0008] First, the mixing station is aligned with the pile point, and after mixing to the design requirements, the pile planting station (pile driving platform) is translated to the pile point (mixing station), and the pile is planted to the design requirements, and the construction of the pile point is completed; the column of the mixing static pile driver provided by the patent is installed vertically, and it needs to be stacked up section by section by a crane. The operator has to climb inside the column to connect it, which is too high and has a high risk factor; the pile pressing force of the translated pile driving platform is small.

[0009] Therefore, there is an urgent need for a mixing pile driving machine and a construction method that can easily keep the mixing center and the pile driving center consistent and have high installation safety. Summary of the invention

[0010] The purpose of the present invention is to provide a mixing pile driver and a construction method, aiming to solve the technical problems of traditional all-in-one construction equipment, such as great difficulty in piling and high risk of installation.

[0011] To achieve the above objectives, in a first aspect, the present invention provides a mixing pile driver, comprising:

[0012] Fuselage platform,

[0013] The upper vehicle platform is rotatably arranged at one end of the fuselage platform, and includes an upper vehicle platform body, a pile driving platform arranged at one end of the upper vehicle platform body, and a column assembly for mixing construction hingedly connected to the other end of the upper vehicle platform body; the column assembly includes a mixing power head and a column body for slidingly supporting the mixing power head; the mixing center of the mixing power head and the pile clamping center of the pile driving platform are symmetrically distributed about the rotation center of the upper vehicle platform body;

[0014] The mast erecting mechanism is arranged between the pile driving platform and the column assembly, and is used to place the column assembly in a horizontal state or a vertical state.

[0015] As a further improvement of the above scheme, the upper platform body is rotatably arranged on the fuselage platform through a rotary drive device, and a clamping mechanism for increasing the stability of the upper platform is also arranged between the upper platform body and the fuselage platform.

[0016] As a further improvement of the above solution, the clamping mechanism includes a clamping frame arranged on the lower surface of the upper platform body, and a support member arranged on the upper surface of the fuselage platform;

[0017] The clamping frame is provided with clamping cylinders in pairs, and the telescopic ends of the clamping cylinders are respectively provided with clamping blocks, and the clamping blocks arranged in pairs are used to operably clamp the support member;

[0018] Preferably, grooves matching and clamping with the clamping block are respectively provided on opposite sides of the support member.

[0019] As a further improvement of the above scheme, three clamping mechanisms are arranged between the upper platform body and the fuselage platform; two of the clamping mechanisms are arranged correspondingly below the pile driving platform at intervals, and the other one is arranged correspondingly below the column assembly.

[0020] As a further improvement of the above solution, the slewing drive device includes a slewing motor and a slewing bearing drivingly connected to the slewing drive motor.

[0021] As a further improvement of the above scheme, the mast mechanism includes a retractable support rod assembly, a vertical frame pull rope, a mast swing frame, a mast wire rope and a mast winch;

[0022] One end of the retractable support rod assembly is hinged to the column assembly, and the other end is hinged to the vehicle loading platform body;

[0023] One end of the vertical frame pull rope is hinged to the column body, and the other end is provided with a movable pulley block;

[0024] The vertical mast swing frame includes a first swing rod and a second swing rod, one end of the first swing rod is hinged to the first position of the upper platform body, and the other end is hinged to one end of the second swing rod, and the other end of the second swing rod is hinged to the second position of the upper platform body;

[0025] A mast fixed pulley block is provided at the hinged joint between the other end of the first swing rod and one end of the second swing rod;

[0026] The mast winch is arranged on the upper platform body, one end of the mast wire rope is connected to the drum of the mast winch, and the other end passes around the drum and forms a closed loop with the mast fixed pulley group and the movable pulley group in sequence to provide power for the mast of the column assembly.

[0027] As a further improvement of the above solution, the mast swing frame is located between the column assembly and the pile driving platform.

[0028] As a further improvement of the above solution, the telescopic support rod assembly includes a diagonal support rod and a diagonal support cylinder connected to one end of the diagonal support rod;

[0029] Preferably, one end of the diagonal brace is connected to the rodless cavity end of the diagonal brace oil cylinder, and the rod cavity end of the diagonal brace oil cylinder is hinged to the column body; the other end of the diagonal brace is hinged to the vehicle boarding platform body;

[0030] Alternatively, the rod cavity end of the diagonal support cylinder is hinged to the vehicle boarding platform body; the other end of the diagonal support rod is hinged to the column body.

[0031] As a further improvement of the above scheme, the column assembly also includes a power head wire rope, a goose head for supporting and hoisting the mixing power head, and a power head winch and a power head fixed pulley block both of which are arranged on the upper platform body;

[0032] The power head wire rope is arranged on the drum of the power head hoist, and passes through the power head fixed pulley block and the goose head in sequence to hang the stirring power head on the outer wall of the column assembly.

[0033] As a further improvement of the above solution, the column body includes a plurality of column segments, and the plurality of column segments are connected end to end through flanges to form a column.

[0034] As a further improvement of the above solution, a crane for hoisting pile rods is provided on one end of the fuselage platform away from the column assembly.

[0035] As a further improvement of the above scheme, the mixing pile driver also includes a longitudinal movement mechanism for longitudinal movement of the equipment, a transverse movement mechanism for transverse movement of the equipment, and a lifting mechanism. The longitudinal movement mechanism and the transverse movement mechanism are arranged below the fuselage platform through the lifting mechanism, and the lifting mechanism is used to adjust the horizontality of the fuselage platform.

[0036] In a second aspect, the present invention further provides a construction method of a mixing pile driver as provided in the first aspect, the steps of which include:

[0037] S1. Mast:

[0038] Make the column assembly and the fuselage platform in a horizontal state, and assemble the column body to a preset height according to the depth of the pile pressing; then operate the mast mechanism to make the column assembly and the fuselage platform in a vertical state; hang the mixing power head on the column assembly through the wire rope hoisted by the power head, and connect the drill rod and the mixing drill bit to the mixing power head;

[0039] S2. Mixing piles:

[0040] The upper platform is rotated to align the mixing drill bit with the pile point, and the mixing power head and the power head winch are started. After the mixing power head mixes to a preset depth, it is lifted up to the original position;

[0041] The upper platform is rotated to align the pile driving platform with the pile point, and the pile driving platform is started. The pile clamping box clamps the precast pile, and the precast pile is implanted into the mixing pile under the action of the pile driving cylinder until the preset implantation depth is reached, and the pile planting is completed.

[0042] As a further improvement of the above solution, in step S1, the steps of the mast erection method are as follows:

[0043] S11, hinge one end of the telescopic support rod assembly to the column body; connect one end of the vertical frame pull rope to the column body, and wind the mast wire rope around the movable pulley block at the other end;

[0044] S12, start the mast hoist, and retract the mast wire rope onto its drum, so that the distance between the movable pulley block and the fixed pulley block is shortened. At the same time, the column assembly is driven to rotate through the vertical frame pull rope until it rotates to a preset angle, and then the mast hoist is stopped. The other end of the retractable support rod assembly is connected to the vehicle platform, and the diagonal support cylinder on the retractable support rod assembly lifts the column assembly until it is perpendicular to the fuselage platform, and the mast is completed.

[0045] As a further improvement of the above scheme, in step S2, during the mixing construction, before starting the mixing power head and the power head winch, the clamping mechanism is first started, and the two clamping cylinders clamp the support member to ensure that the upper platform body and the fuselage platform are in a stable supporting state;

[0046] When the mixing construction is completed, the two clamping cylinders are controlled to loosen the support members, and then the vehicle platform is rotated to align the pile pressing platform with the pile point;

[0047] When planting piles, before starting the pile-pressing platform, the clamping mechanism is started again, and the two clamping oil cylinders clamp the supporting member to ensure that the upper platform body and the fuselage platform are in a stable supporting state.

[0048] Since the present invention adopts the above technical solution, the beneficial effect of the present application is that:

[0049] The present invention provides a mixing pile driving machine, wherein a column assembly and a pressing platform are arranged on the upper vehicle platform, and the upper vehicle platform is rotatably connected to the body platform through a rotary drive device, and the pile driving center of the pile driving platform and the stirring center of the stirring power head of the column assembly are symmetrically arranged with respect to the rotary center of the rotary drive device. Such an arrangement makes it easy to make the stirring center of the stirring power head coincide with the pile driving center of the pile driving platform, thereby reducing the difficulty of piling and improving the concentricity of the pile position.

[0050] Furthermore, in the present invention, the column assembly is hinged to the vehicle platform, and the column assembly can be placed in parallel with the fuselage platform through the mast mechanism, so that the staff can complete the installation work on the ground without climbing to a high place for installation, thereby reducing the installation height and improving the safety of the installation;

[0051] In addition, through the setting of the clamping mechanism, the fuselage platform and the upper vehicle platform are connected into one, and during the mixing process and the piling process, the two clamping cylinders of the clamping mechanism can firmly clamp the clamping parts fixed to the fuselage platform, thereby increasing the rigidity and strength of the upper vehicle platform, thereby ensuring the stability of mixing and piling. In addition, the counterweight set on the fuselage platform itself can effectively improve the pile pressing force of the whole machine. The setting of combining mixing and piling into one can reduce the overall cost of the equipment compared with the cooperation of a separate mixer and a pile driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0053] Figure 1 It is a schematic front view of a mixing pile driver disclosed in the present invention during the mast erection process;

[0054] Figure 2It is a schematic diagram of the main view of a mixing pile driver disclosed in the present invention after the mast is erected;

[0055] Figure 3 It is a schematic diagram of the main view of a mixing pile driver disclosed in the present invention in front of a mast;

[0056] Figure 4 It is a cross-sectional schematic diagram of the clamping mechanism disclosed in the present invention;

[0057] Figure 5 It is a partial front view schematic diagram of the connection between the upper vehicle platform and the fuselage platform disclosed in the present invention.

[0058] Reference numerals:

[0059] 1. Fuselage platform; 2. Car platform; 21. Car platform body; 22. Pile pressing platform;

[0060] 23. Column assembly; 231. Mixing power head; 232. Column body; 233. Power head wire rope; 234. Goose head; 235. Power head winch; 236. Power head fixed pulley block;

[0061] 3. Rotary drive device; 31. Rotary motor; 32. Rotary support;

[0062] 4. Clamping mechanism; 41. Clamping frame; 42. Support member; 421. Groove; 43. Clamping cylinder; 44. Clamping block;

[0063] 5. Mast erecting mechanism; 51. Telescopic support rod assembly; 511. Diagonal support rod; 512. Diagonal support cylinder; 52. Vertical frame pull rope; 53. Mast erecting swing frame; 531. First swing rod; 532. Second swing rod; 54. Mast erecting wire rope; 55. Mast erecting winch; 56. Moving pulley block; 57. Mast erecting fixed pulley block;

[0064] 6. Crane; 7. Longitudinal movement mechanism; 8. Transverse movement mechanism; 9. Lifting mechanism.

[0065] The purpose, features and advantages of the present invention will be further described in conjunction with the embodiments with reference to the accompanying drawings. DETAILED DESCRIPTION

[0066] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0067] It should be noted that all directional indications (such as up, down, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0068] In addition, in the present invention, the descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0069] Furthermore, the technical solutions between the various embodiments of the present invention may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in the field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0070] Example 1

[0071] See also Figure 1-Figure 5 The present invention provides a mixing pile driver, comprising:

[0072] Fuselage platform 1,

[0073] The vehicle platform 2 is rotatably arranged at one end of the fuselage platform 1, and includes a vehicle platform body 21, a pile driving platform 22 arranged at one end of the vehicle platform body 21, and a column assembly 23 for mixing construction hinged to the other end of the vehicle platform body 21; the column assembly 23 includes a mixing power head 231 and a column body 232 for slidingly supporting the mixing power head 231; the mixing center of the mixing power head 231 and the pile clamping center of the pile driving platform 22 are symmetrically distributed about the rotation center of the vehicle platform body 21; specifically, the column assembly 23 also includes a power head wire rope 233, a goose head 234 for supporting and hoisting the mixing power head 231, and a power head winch 235 and a power head fixed pulley block 236 both of which are arranged on the upper platform body 21; the power head wire rope 233 is arranged on the drum of the power head winch 235, and sequentially passes through the power head fixed pulley block 236 and the goose head 234 to hang the mixing power head 231 on the outer wall of the column assembly 23; the mixing power head 231 is detachably connected with a drill rod and a mixing drill bit, and multiple drill rods can be installed according to the mixing depth;

[0074] The pile driving platform 22 has at least two support frames, a pile clamping box which can be lifted and lowered along the support frames, a cross beam arranged on the upper part of the support frames, and a pile driving cylinder; the rod cavity end of the pile driving cylinder is connected to the cross beam, and the rodless cavity end is connected to the pile clamping box, and the cylinder body of the pile driving cylinder passes through the interior of the pile clamping box along its length direction; in this embodiment, the number of the support frames is four, and the four support frames are arranged at the four vertices of a rectangle, the pile clamping box is arranged between the four support frames, and can be lifted and lowered along the support frames; the cross beam is arranged at the upper ends of two adjacent support frames, and the two cross beams are arranged opposite to each other, the rod cavity end of the pile driving cylinder is connected to the lower surface of the cross beam, and the rodless cavity end of the pile driving cylinder is connected to the pile clamping box; a counterweight cross beam is also arranged on the fuselage platform 1, and a plurality of counterweight blocks are arranged on the counterweight cross beam;

[0075] The mast erecting mechanism 5 is arranged between the pile driving platform 22 and the column assembly 23, and is used to place the column assembly 23 in a horizontal state or a vertical state;

[0076] In the present invention, the column assembly 23 and the pressing platform are arranged on the vehicle platform 2, and the vehicle platform 2 is rotatably connected to the fuselage platform 1 through the rotary drive device 3, and the pile planting center of the pile pressing platform 22 and the stirring center of the stirring power head 231 of the column assembly 23 are symmetrically arranged about the rotation center of the rotary drive device 3. Such an arrangement makes it easy to make the stirring center of the stirring power head 231 coincide with the pile planting center of the pile pressing platform 22, thereby reducing the difficulty of piling and improving the concentricity of the pile position;

[0077] Furthermore, in the present invention, the column assembly 23 is hinged to the vehicle platform 2, and the column assembly 23 can be placed in parallel with the fuselage platform 1 through the mast mechanism 5, so that the staff can complete the installation work on the ground without climbing to a high place for installation, thereby reducing the installation height and improving the safety of the installation;

[0078] In addition, through the setting of the clamping mechanism 4, the fuselage platform 1 and the upper vehicle platform 2 are connected as a whole, and during the mixing process and the pile planting process, the two clamping cylinders 43 of the clamping mechanism 4 can firmly clamp the clamping parts fixed to the fuselage platform 1, thereby increasing the rigidity and strength of the upper vehicle platform 2, thereby ensuring the stability of mixing and pile planting. In addition, the counterweight set on the fuselage platform 1 itself can effectively improve the pile driving force of the whole machine. The setting of combining mixing and pile planting can reduce the overall cost of the equipment compared with the cooperation of a separate mixer and a pile driver.

[0079] As a preferred embodiment, the vehicle loading platform body 21 is rotatably arranged on the fuselage platform 1 through a rotary drive device 3, and a clamping mechanism 4 for increasing the stability of the vehicle loading platform 2 is also arranged between the vehicle loading platform body 21 and the fuselage platform 1;

[0080] Specifically, the slewing drive device 3 includes a slewing motor 31 and a slewing bearing 32 drivingly connected to the slewing drive motor; the outer ring of the slewing bearing 32 is connected to the fuselage platform 1, and the inner ring thereof is fixedly connected to the lower surface of the vehicle loading platform 2. Under the drive of the slewing motor 31, the vehicle loading platform 2 can rotate and can drive the column assembly 23 and the press-fitting platform arranged thereon to rotate;

[0081] In this embodiment, three groups of clamping mechanisms 4 are arranged between the upper platform body 21 and the fuselage platform 1; two groups of the clamping mechanisms 4 are arranged at intervals and correspondingly below the pile driving platform 22, and the other group is arranged correspondingly below the column assembly 23; the clamping mechanisms 4 are arranged so that when the upper platform 2 needs to be rotated, the clamping mechanisms 4 release the clamping connection with the fuselage platform 1, and when rotated to a preset position, the clamping mechanisms 4 are in a clamping state, so that the upper platform body 21 and the fuselage platform 1 are firmly connected, which is convenient for mixing operations or piling operations.

[0082] As a preferred embodiment, the clamping mechanism 4 includes a clamping frame 41 arranged on the lower surface of the upper platform body 21, and a support member 42 arranged on the upper surface of the fuselage platform 1;

[0083] The clamping frame 41 is provided with clamping cylinders 43 in pairs, and the telescopic ends of the clamping cylinders 43 are respectively provided with clamping blocks 44, and the clamping blocks 44 provided in pairs are used to operably clamp the support member 42;

[0084] Preferably, in this embodiment, the support member 42 is an arc-shaped steel rail with a preset length, the bottom of the arc-shaped steel rail is welded to the upper surface of the fuselage platform 1 or fixed to the fuselage platform 1 by a fastening assembly; and grooves 421 matching and clamping the clamping block 44 are respectively provided on both sides of the waist of the steel rail.

[0085] As a preferred embodiment, the mast erecting mechanism 5 includes a retractable support rod assembly 51, a vertical frame pull rope 52, a mast erecting frame 53, a mast erecting wire rope 54 and a mast erecting winch 55;

[0086] One end of the retractable support rod assembly 51 is hinged to the column assembly 23, and the other end is hinged to the vehicle loading platform body 21;

[0087] One end of the vertical frame pull rope 52 is hinged to the column body 232, and the other end is provided with a movable pulley set 56;

[0088] The vertical mast swing frame 53 includes a first swing rod 531 and a second swing rod 532, one end of the first swing rod 531 is hinged to the first position of the vehicle platform body 21, and the other end is hinged to one end of the second swing rod 532, and the other end of the second swing rod 532 is hinged to the second position of the vehicle platform body 21;

[0089] A mast fixed pulley block 57 is provided at the hinged joint between the other end of the first swing rod 531 and one end of the second swing rod 532;

[0090] The mast winch 55 is arranged on the vehicle platform body 21, one end of the mast wire rope 54 is connected to the drum of the mast winch 55, and the other end passes around the drum and sequentially forms a closed loop with the mast fixed pulley set 57 and the movable pulley set 56 to provide power for the mast of the column assembly 23;

[0091] The setting of the mast erecting mechanism 5 makes it easy to place the column assembly 23 in a horizontal state, so that the staff can easily assemble the column body 232 into one piece, without having to climb to the top of the column to assemble the column as in traditional equipment, thereby reducing safety hazards; in this embodiment, by cleverly setting the vertical frame pull rope 52, the mast swing frame 53, the movable pulley group 56 and the mast fixed pulley group 57, the mast erection of the column assembly 23 can be achieved by controlling the mast winch 55, which is easy to operate and has a simple structure.

[0092] As a preferred embodiment, the mast swing frame 53 is located between the column assembly 23 and the pile driving platform 22 , and in an embodiment, the cab is disposed adjacent to the mast swing frame 53 .

[0093] As a preferred embodiment, the telescopic support rod assembly 51 includes a diagonal support rod 511 and a diagonal support cylinder 512 connected to one end of the diagonal support rod 511;

[0094] Preferably, one end of the diagonal support rod 511 is connected to the rodless cavity end of the diagonal support oil cylinder 512, and the rod cavity end of the diagonal support oil cylinder 512 is hinged to the column body 232; the other end of the diagonal support rod 511 is hinged to the vehicle boarding platform body 21;

[0095] Alternatively, the rod cavity end of the diagonal support cylinder 512 is hinged to the vehicle boarding platform body 21; the other end of the diagonal support rod 511 is hinged to the column body 232;

[0096] Only by controlling the diagonal support cylinder 512, the extension length of the diagonal support rod 511 can be controlled, so that the column can be conveniently propped up. Moreover, by splicing the diagonal support rod 511 and the diagonal support cylinder 512 into one body, the specification of the cylinder can be reduced compared to the setting of using a single cylinder with a long stroke, thereby reducing the equipment cost.

[0097] As a preferred embodiment, the column body 232 includes a plurality of column segments, and the plurality of column segments are connected end to end through flanges to form a column.

[0098] As a preferred embodiment, a crane 6 for hoisting piles is provided at one end of the fuselage platform 1 away from the column assembly 23 .

[0099] As a preferred embodiment, the mixing pile driver also includes a longitudinal movement mechanism 7 for longitudinal movement of the equipment, a transverse movement mechanism 8 for transverse movement of the equipment, and a lifting mechanism 9. The longitudinal movement mechanism 7 and the transverse movement mechanism 8 are arranged below the fuselage platform 1 through the lifting mechanism 9. The lifting mechanism 9 is used to adjust the horizontality of the fuselage platform 1.

[0100] Example 2

[0101] The present invention also provides a construction method of a mixing pile driver as described in Example 1, the steps of which include:

[0102] S1. Mast:

[0103] Make the column assembly 23 and the fuselage platform 1 in a horizontal state, and assemble the column body 232 to a preset height according to the depth of the pile pressing; then operate the mast mechanism 5 to make the column assembly 23 and the fuselage platform 1 in a vertical state; hang the stirring power head 231 on the column assembly 23 through the steel wire rope of the power head winch 235, and connect the drill rod and the stirring drill bit to the stirring power head 231;

[0104] The steps of the mast erection method are as follows:

[0105] S11, hinge one end of the telescopic support rod assembly 51 with the column body 232; connect one end of the vertical frame pull rope 52 with the column body 232, and wind the mast wire rope 54 around the movable pulley block 56 at the other end;

[0106] S12, start the mast hoist 55, and retract the mast wire rope 54 onto its drum, so that the distance between the movable pulley block 56 and the fixed pulley block is shortened, and at the same time, the mast hoist 55 is driven to rotate the column assembly 23 through the vertical frame pull rope 52, and the mast hoist 55 is stopped after rotating to a preset angle, and the other end of the telescopic support rod assembly 51 is connected to the vehicle boarding platform 2, and the diagonal support cylinder 512 on the telescopic support rod assembly 51 lifts the column assembly 23 until it is perpendicular to the fuselage platform 1, and the mast is completed;

[0107] S2. Mixing piles:

[0108] The upper platform 2 is rotated to make the mixing drill bit align with the pile point, and the clamping mechanism 4 is first started, and the two clamping cylinders 43 clamp the support member 42, so that the upper platform body 21 and the fuselage platform 1 are in a stable support state; then the mixing power head 231 and the power head winch 235 are started, and the mixing power head 231 rotates and drills downward at the same time; during the drilling process, multiple drill rods can be installed according to the mixing depth; after the mixing power head 231 mixes to a preset depth, the drill rod is rotated and lifted up until the drill bit is lifted back to its original position, and the mixing construction is completed; then the two clamping cylinders 43 are controlled to release the support member 42;

[0109] The upper vehicle platform 2 is rotated to align the pile driving platform 22 with the pile point, and the clamping mechanism 4 is started again, and the two clamping cylinders 43 clamp the support member 42, so that the upper vehicle platform body 21 and the fuselage platform 1 are in a stable supporting state; the pile driving platform 22 is started again, and its pile clamping box clamps the precast pile, and the precast pile is implanted into the mixing pile under the action of its pile driving cylinder until it reaches the preset implantation depth, and the pile planting is completed;

[0110] Such construction can effectively ensure that the mixing center and the pile driving platform 22 pile center coincide with each other, reduce the difficulty of piling, and improve the concentricity of the two pile positions; at the same time, during the mixing and piling construction process, the support member 42 arranged on the fuselage platform 1 is firmly clamped by the clamping mechanism 4, so that the upper platform 2 and the fuselage platform 1 are fixedly connected as a whole, which increases the stability of the equipment, and under the action of the counterweight block on the fuselage platform 1, the pile driving force of the whole machine can be effectively improved.

[0111] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A mixing pile driver, characterized in that: include: Fuselage platform, The upper vehicle platform is rotatably arranged at one end of the fuselage platform, and includes an upper vehicle platform body, a pile driving platform arranged at one end of the upper vehicle platform body, and a column assembly for mixing construction hingedly connected to the other end of the upper vehicle platform body; the column assembly includes a mixing power head and a column body for slidingly supporting the mixing power head; the mixing center of the mixing power head and the pile clamping center of the pile driving platform are symmetrically distributed about the rotation center of the upper vehicle platform body; The mast erecting mechanism is arranged between the pile driving platform and the column assembly, and is used to place the column assembly in a horizontal state or a vertical state.

2. A mixing pile driver according to claim 1, characterized in that: The upper vehicle platform body is rotatably arranged on the fuselage platform through a rotary driving device, and a clamping mechanism for increasing the stability of the upper vehicle platform is also arranged between the upper vehicle platform body and the fuselage platform.

3. A mixing pile driver according to claim 2, characterized in that: The clamping mechanism comprises a clamping frame arranged on the lower surface of the upper platform body, and a supporting member arranged on the upper surface of the fuselage platform; The clamping frame is provided with clamping oil cylinders in pairs, and the telescopic ends of the clamping oil cylinders are respectively provided with clamping blocks, and the clamping blocks arranged in pairs are used to operably clamp the support member.

4. A mixing pile driver according to any one of claims 1 to 3, characterized in that: The mast erecting mechanism comprises a retractable support rod assembly, a vertical frame pull rope, a mast erecting frame, a mast erecting wire rope and a mast erecting winch; One end of the retractable support rod assembly is hinged to the column assembly, and the other end is hinged to the vehicle loading platform body; One end of the vertical frame pull rope is hinged to the column body, and the other end is provided with a movable pulley block; The vertical mast swing frame includes a first swing rod and a second swing rod, one end of the first swing rod is hinged to the first position of the upper platform body, and the other end is hinged to one end of the second swing rod, and the other end of the second swing rod is hinged to the second position of the upper platform body; A mast fixed pulley block is provided at the hinged joint between the other end of the first swing rod and one end of the second swing rod; The mast winch is arranged on the upper platform body, one end of the mast wire rope is connected to the drum of the mast winch, and the other end passes around the drum and forms a closed loop with the mast fixed pulley group and the movable pulley group in sequence to provide power for the mast of the column assembly.

5. A mixing pile driver according to claim 4, characterized in that: The mast swing frame is located between the column assembly and the pile driving platform.

6. A mixing pile driver according to claim 4, characterized in that: The telescopic support rod assembly comprises a diagonal support rod and a diagonal support oil cylinder connected to one end of the diagonal support rod; One end of the diagonal brace is connected to the rodless cavity end of the diagonal brace oil cylinder, and the rod cavity end of the diagonal brace oil cylinder is hinged to the column body; the other end of the diagonal brace is hinged to the vehicle boarding platform body; Alternatively, the rod cavity end of the diagonal support cylinder is hinged to the vehicle boarding platform body; the other end of the diagonal support rod is hinged to the column body.

7. A mixing pile driver according to any one of claims 1 to 3, characterized in that: The column assembly also includes a power head wire rope, a goose head for supporting and hoisting the mixing power head, and a power head winch and a power head fixed pulley block both of which are arranged on the upper platform body; The power head wire rope is arranged on the drum of the power head hoist, and passes through the power head fixed pulley block and the goose head in sequence to hang the stirring power head on the outer wall of the column assembly.

8. A construction method of a mixing pile driver according to any one of claims 1 to 7, characterized in that: The steps include: S1. Mast: Make the column assembly and the fuselage platform in a horizontal state, and assemble the column body to a preset height according to the depth of the pile pressing; then operate the mast mechanism to make the column assembly and the fuselage platform in a vertical state; hang the stirring power head on the column assembly through the wire rope hoisted by the power head, and connect the drill rod and the stirring drill bit to the stirring power head; S2. Mixing piles: The upper platform is rotated to align the mixing drill bit with the pile point, and the mixing power head and the power head winch are started. After the mixing power head mixes to a preset depth, it is lifted up to the original position; The upper platform is rotated to align the pile driving platform with the pile point, and the pile driving platform is started. The pile clamping box clamps the precast pile, and the precast pile is implanted into the mixing pile under the action of the pile driving cylinder until the preset implantation depth is reached, and the pile planting is completed.

9. The construction method of a mixing pile driver according to claim 8, characterized in that: In step S1, the steps of the mast erection method are as follows: S11, hinge one end of the telescopic support rod assembly to the column body; connect one end of the vertical frame pull rope to the column body, and wind the mast wire rope around the movable pulley block at the other end; S12, start the mast hoist, and retract the mast wire rope onto its drum, so that the distance between the movable pulley block and the fixed pulley block is shortened. At the same time, the column assembly is driven to rotate through the vertical frame pull rope until it rotates to a preset angle, and then the mast hoist is stopped. The other end of the retractable support rod assembly is connected to the vehicle platform, and the diagonal support cylinder on the retractable support rod assembly lifts the column assembly until it is perpendicular to the fuselage platform, and the mast is completed.

10. A construction method of a mixing pile driver according to claim 8 or 9, characterized in that: In step S2, during the mixing construction, before starting the mixing power head and the power head winch, the clamping mechanism is first started, and the two clamping cylinders clamp the support member so that the upper platform body and the fuselage platform are in a stable supporting state; When the mixing construction is completed, the two clamping cylinders are controlled to loosen the support members, and then the vehicle platform is rotated to align the pile pressing platform with the pile point; When planting piles, before starting the pile-pressing platform, the clamping mechanism is started again, and the two clamping oil cylinders clamp the supporting member to ensure that the upper platform body and the fuselage platform are in a stable supporting state.

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