Bidirectional cutting stirring pile drilling machine and control method

Abstract

The invention discloses a bi-directional cutting stirring pile drilling machine and a control method, and the bi-directional cutting stirring pile drilling machine comprises an intelligent control system, a power device arranged on a mounting pile body in a liftable mode and a plurality of rotary stirring pieces in power connection with the power device. By the adoption of the bidirectional cutting stirring pile drilling machine and the control method, bidirectional rotation of the forward stirring shaft and the reverse stirring shaft is achieved through the fixed shaft reversing assembly, so that each rotary stirring piece conducts bidirectional cutting stirring in the same hole; and in combination with an intelligent control system, the soil body cutting and crushing sufficiency and the mixing uniformity between curing agent slurry and soil particles can be effectively improved, and the quality and safety of a foundation reinforcement project and a water stop project are guaranteed while the soft foundation reinforcement and water stop curtain construction efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of civil engineering, and in particular to a bidirectional cutting and mixing pile drilling rig and a control method thereof. Background Art

[0002] In the construction of soft foundation reinforcement, gravity retaining walls, precast sheet pile implantation and water-stop curtains, cement is sprayed into the soil through a pile mixer and fully mixed, so that a series of physical and chemical reactions occur between the cement and the soil, hardening the soft soil and improving the foundation strength.

[0003] Cement mixing piles are divided into single-axis, double-axis, three-axis and other multi-axis mixing piles according to the main construction methods used. Existing mixing piles have the following problems: the mixing blades in the same mixing shaft rotate and drive the soil to move along the rotation direction of the blades, squeezing the soil outwards, and the upper and lower blades and the soil are cut in the same direction, so the soil is easily squeezed to form soil blocks; when the mixing shaft is lifted, the sprayed curing agent slurry flows along the outer gaps between the mixing shaft and the blades, causing a large amount of curing agent slurry injected into the hole to be lost; the slurry flows between the soil blocks and the outside of the mixing blades, resulting in insufficient mixing with the soil, uneven piles, lack of slurry at the pile end, etc., and the efficiency of crushing the soil and mixing into cement soil is low; the construction parameters are mostly controlled manually, which is very arbitrary, and often cause problems such as broken slurry, too fast drilling and lifting, and insufficient rotation and mixing, resulting in poor pile quality, incomplete pile body and low strength of the mixing pile; it is impossible to ensure that when the prefabricated sheet pile is implanted, the cement soil in the hole is fully cut and crushed into a large flow state. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a bidirectional cutting and mixing pile drilling rig and a control method which have high construction efficiency and can ensure construction quality.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions.

[0006] The present application provides a bidirectional cutting and mixing pile drilling rig, comprising:

[0007] Intelligent control system, used to monitor and control the construction status of the mixing pile drilling rig;

[0008] A power device, which can be lifted and lowered on the installation pile;

[0009] The power device is provided with a plurality of rotating stirring members, including a fixed-axis reversing assembly, a drill bit and a coaxially arranged drill rod, a forward stirring shaft, and a reverse stirring shaft;

[0010] The drill rod is connected to the power output end of the power device, one end of the forward stirring shaft is fixedly connected to the end of the drill rod away from the power device, and the other end is connected to the reverse stirring shaft through a fixed axis reversing assembly, and the drill bit is fixedly arranged at the end of the reverse stirring shaft away from the fixed axis reversing assembly;

[0011] The power device can drive the forward stirring shaft to rotate in a first direction, and the fixed-axis reversing assembly can drive the reverse stirring shaft to rotate in a second direction under the drive of the forward stirring shaft. The first direction and the second direction are specifically opposite directions.

[0012] It is further defined that in the above-mentioned bidirectional cutting and mixing pile drilling rig, a plurality of groups of stirring teeth arranged in an axial array are fixedly disposed on the forward stirring shaft and the reverse stirring shaft respectively;

[0013] Wherein, the stirring teeth on two adjacent rotating stirring members are respectively arranged alternately along the axial direction.

[0014] It is further defined that in the above-mentioned bidirectional cutting and mixing pile drilling rig, the rotating stirring element is detachably connected to the power device, and a plurality of the rotating stirring elements are arranged in a linear array on the power device.

[0015] It is further defined that in the above-mentioned bidirectional cutting and mixing pile drilling rig, an internal material delivery pipe is provided inside the rotating stirring member, and an upper nozzle and a lower nozzle connected to the internal material delivery pipe are provided on the rotating stirring member;

[0016] Wherein, the upper nozzle is arranged at a position of the forward stirring shaft away from one end of the reverse stirring shaft, or at a position of the drill rod close to one end of the forward stirring shaft;

[0017] The lower nozzle is arranged at a position of one end of the reverse stirring shaft away from the forward stirring shaft.

[0018] It is further defined that in the above-mentioned bidirectional cutting and mixing pile drilling rig, an external material delivery pipe parallel to the rotating stirring member is provided between two adjacent rotating stirring members, and an upper nozzle is provided on the external material delivery pipe:

[0019] An inner material delivery pipe is provided inside the rotating stirring member, and a lower nozzle communicating with the inner material delivery pipe is provided on the rotating stirring member;

[0020] Wherein, the upper nozzle is arranged at one end of the external material delivery pipe close to the reverse stirring shaft, and is located at a position of the forward stirring shaft away from one end of the reverse stirring shaft, or is located at a position of the drill rod close to one end of the forward stirring shaft;

[0021] The lower nozzle is arranged at a position of one end of the reverse stirring shaft away from the forward stirring shaft.

[0022] It is further defined that the above-mentioned bidirectional cutting and mixing pile drilling rig further includes a driving unit for installing an external material delivery pipe;

[0023] The driving unit comprises:

[0024] Fixed frame;

[0025] The adapter is rotatably arranged on the fixed frame and parallel to the rotating stirring element, is provided with a clearance hole along the axial direction, is fixedly provided with a driven pulley, and has a plurality of fixing bolts fixedly provided on the end surface close to the ground;

[0026] A positioning frame is fixedly arranged on the fixed frame and is provided with an introduction hole corresponding to the position of the clearance hole;

[0027] A limiting rod is fixedly arranged on the positioning frame and is parallel to the central axis of the adapter, passes through the corresponding position giving hole and extends to the side of the adapter close to the ground;

[0028] A driving motor is fixedly arranged on the fixed frame, and a driving pulley is fixedly arranged on the power shaft;

[0029] The external material delivery pipe comprises:

[0030] The connecting rotating drum has a connecting cavity extending therethrough in the axial direction, and a plurality of through holes corresponding to the positions of the fixing bolts are arranged on the end surface away from the ground;

[0031] A lifting cylinder is arranged in the connecting cavity and is threadedly connected to the inner wall of the connecting cavity, and is provided with an outlet hole which opens to a side away from the ground and communicates with the connecting cavity;

[0032] A limiter is rotatably arranged on the inner wall of the connection cavity, a transition hole is axially penetrated therethrough, a limiter hole is arranged on the end face away from the ground, and a guide rod parallel to the central axis of the lifting cylinder is fixedly arranged on the end face close to the ground;

[0033] Wherein, a plurality of the fixing bolts can penetrate through holes at corresponding positions on the connecting drum, and the connecting drum can be fixedly connected to the adapter by fixing nuts threadedly connected to the fixing bolts;

[0034] The lifting cylinder is provided with a guide hole which is slidably connected to the guide rod, and the upper nozzle is arranged at one end of the lifting cylinder close to the ground and is connected to the lead-out hole;

[0035] The limiting rod is specifically configured as a non-rotating body. When the adapter is connected to the connecting drum, the limiting rod is engaged with the limiting hole.

[0036] It is further defined that in the above-mentioned bidirectional cutting and mixing pile drilling rig, the fixed axis reversing assembly comprises a linkage gear and a coaxial driving gear and a driven gear;

[0037] The driving gear is fixedly arranged at one end of the forward stirring shaft away from the drill rod, and the driven gear is fixedly arranged at one end of the reverse stirring shaft close to the drill rod and is rotationally connected to the forward stirring shaft;

[0038] The linkage gear is arranged between the driving gear and the driven gear, is rotationally connected to the driven gear and is respectively meshed with the external teeth of the driving gear and the internal teeth of the driven gear.

[0039] It is further defined that in the above-mentioned bidirectional cutting and mixing pile drilling rig, a plurality of linkage gears are provided between the driving gear and the driven gear, and the plurality of linkage gears are arranged in a circular array about the central axis of the driving gear and the driven gear.

[0040] It is further defined that the above-mentioned bidirectional cutting and mixing pile drilling rig, wherein the installation pile body comprises a base, a support frame, and a column, the column is fixedly arranged on the base and is perpendicular to the ground, and the support frame is arranged between the base and the column;

[0041] Among them, the base is also provided with a traction and lifting device, the column is provided with a guide wheel assembly, the end of the power device away from the rotating stirring element is connected to a traction rope, and the traction rope is wound around the guide wheel assembly and connected to the traction and lifting device.

[0042] The present application also provides a control method for the bidirectional cutting and mixing pile drilling rig described in any one of the above items, comprising:

[0043] Obtain monitoring parameters of bidirectional cutting and mixing pile drilling rig;

[0044] Determine whether the monitoring parameters meet the error standard, and adjust the monitoring parameters that do not meet the error standard;

[0045] The monitoring parameters include construction parameters and the shape and driving parameters of the pile driver.

[0046] Further defined, in the above-mentioned control method, the shape and driving parameters of the pile driver include X-axis position coordinates, Y-axis position coordinates, verticality, pile top elevation, pile bottom elevation, drilling speed, lifting speed, and stirring speed of the rotating stirring member;

[0047] The construction parameters include upper shotcrete volume, lower shotcrete volume, air jet volume, or also include shared shotcrete volume of external material delivery pipe.

[0048] The present invention has at least the following beneficial effects:

[0049] 1. The fixed-axis reversing assembly realizes the bidirectional rotation of the forward stirring shaft and the reverse stirring shaft, so that each rotating stirring element can perform bidirectional cutting and stirring in the same hole. Combined with the intelligent control system, it can effectively improve the completeness of soil cutting and crushing and the mixing uniformity between the curing agent slurry and soil particles. While improving the efficiency of soft foundation reinforcement and water-stop curtain construction, it ensures the quality and safety of foundation reinforcement and water-stop projects;

[0050] 2. The rotating stirring element is detachably connected to the power device. The number of rotating stirring elements can be flexibly adjusted based on work requirements, so that one machine can be used for multiple purposes, adapting to different construction site conditions and different design requirements for foundation reinforcement and treatment, further improving the practicality of the mixing pile drilling rig;

[0051] 3. The telescopic control of the external material delivery pipe is realized through the driving unit, so as to adjust the relative position between the upper nozzle and the lower nozzle, so that the material output position of the upper nozzle can adapt to different working conditions, greatly improving the practicality of the device and the overall operation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 This is a schematic diagram of the overall structure of a bidirectional cutting and mixing pile drilling rig according to an embodiment of the present application;

[0053] Figure 2 This is a schematic diagram of the structure of a bidirectional cutting and mixing pile drilling rig configured with five "rotating mixing elements" according to an embodiment of the present application;

[0054] Figure 3 This is a schematic diagram of the structure of a bidirectional cutting and mixing pile drilling rig configured with four "rotating mixing elements" according to an embodiment of the present application;

[0055] Figure 4 This is a schematic diagram of the structure of a bidirectional cutting and mixing pile drilling rig configured with three "rotating mixing elements" according to an embodiment of the present application;

[0056] Figure 5 This is a schematic diagram of the structure of a bidirectional cutting and mixing pile drilling rig configured with two "rotating mixing elements" according to an embodiment of the present application;

[0057] Figure 6 A schematic diagram of the structure of the bidirectional cutting and mixing pile drilling rig configured with five "rotating mixing elements" and an "external material delivery pipe 500" according to an embodiment of the present application;

[0058] Figure 7 A schematic diagram of the structure of the bidirectional cutting and mixing pile drilling rig configured with four "rotating stirring elements" and an "external material delivery pipe 500" according to an embodiment of the present application;

[0059] Figure 8 A schematic diagram of the structure of the bidirectional cutting and mixing pile drilling rig configured with three "rotating stirring elements" and an "external material delivery pipe 500" according to an embodiment of the present application;

[0060] Fig. 9 A schematic diagram of the structure of the bidirectional cutting and mixing pile drilling rig configured with two "rotating stirring elements" and an "external material delivery pipe 500" according to an embodiment of the present application;

[0061] Fig.10 This is a schematic structural diagram of the "fixed axis reversing assembly 330" in the bidirectional cutting and mixing pile drilling rig according to the embodiment of the present application;

[0062] Fig.11 This is a schematic structural diagram of the "external material delivery pipe 500" part of the bidirectional cutting and mixing pile drilling rig according to an embodiment of the present application;

[0063] Fig.12 This is a schematic structural diagram of the "adapter 506" part of the bidirectional cutting and mixing pile drilling rig in the embodiment of the present application;

[0064] Fig.13 This is a schematic diagram of the connection structure between the "adapter 506" and the connecting drum 512" in the bidirectional cutting and mixing pile drilling rig of the embodiment of the present application;

[0065] Fig.14 This is a schematic diagram of the cooperation between the "limiting member 517" and the "limiting rod 515" in the bidirectional cutting and mixing pile drilling rig according to the embodiment of the present application;

[0066] Fig.15 It is a flowchart of the control method of the embodiment of the present application.

[0067] Reference numerals

[0068] Base 110, support frame 120, traction rope 130, column 140, power device 200, drill rod 310, forward stirring shaft 320, first stirring tooth 321, fixed axis reversing assembly 330, driving gear 331, linkage gear 332, driven gear 333, reverse stirring shaft 340, second stirring tooth 341, drill bit 350, upper nozzle 410, lower nozzle 420, external material delivery pipe 500, fixed frame 501, transmission cavity 502, positioning frame 503, introduction hole-504, clearance hole-505, adapter-506, driven pulley-507, transmission belt-508, drive motor-509, power shaft-510, driving pulley-511, connecting drum-512, connecting cavity-513, lifting cylinder-514, limiting rod-515, fixing bolt-516, limiting piece-517, guide rod-518, guide hole-519, fixing nut-520, limiting hole-521, transition hole-522, lead-out hole-523, inner feed pipe-600. DETAILED DESCRIPTION

[0069] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0070] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0071] The bidirectional cutting and mixing pile drilling rig and control method provided in the embodiment of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and their application scenarios.

[0072] Example 1

[0073] like Figures 1 to 10 As shown, an embodiment of the present application provides a bidirectional cutting and mixing pile drilling rig, including an intelligent control system, a power device 200 that can be lifted and lowered on a pile installation body, and a plurality of rotating mixing elements that are power-connected to the power device 200 .

[0074] The rotating stirring element includes a fixed-axis reversing assembly 330, a drill bit 350, and a coaxially arranged drill rod 310, a forward stirring shaft 320, and a reverse stirring shaft 340. The drill rod 310 is connected to the power output end of the power device 200. One end of the forward stirring shaft 320 is fixedly connected to the end of the drill rod 310 away from the power device 200, and the other end is connected to the reverse stirring shaft 340 through the fixed-axis reversing assembly 330. The drill bit 350 is fixedly arranged at the end of the reverse stirring shaft 340 away from the fixed-axis reversing assembly 330.

[0075] Among them, the intelligent control system is used to monitor and control the construction status of the mixing pile drilling rig. The power device 200 can drive the forward mixing shaft 320 to rotate in a first direction, and the fixed-axis reversing assembly 330 can drive the reverse mixing shaft 340 to rotate in a second direction under the drive of the forward mixing shaft 320. The first direction and the second direction are specifically opposite directions.

[0076] In an embodiment of the present application, the above-mentioned bidirectional cutting and mixing pile drilling rig is adopted, and the bidirectional rotation of the forward stirring shaft 320 and the reverse stirring shaft 340 is realized through the fixed-axis reversing component 330, so that each rotating stirring element performs bidirectional cutting and mixing in the same hole. Combined with the intelligent control system, it can effectively improve the degree of soil cutting and crushing and the mixing uniformity between the curing agent slurry and the soil particles, while improving the efficiency of soft foundation reinforcement and water-stopping curtain construction, ensuring the quality and safety of foundation reinforcement projects and water-stopping projects.

[0077] In a preferred embodiment, Figures 1 to 9 As shown, a plurality of rotating stirring elements are detachably connected to the power device 200 and are arranged in a linear array on the power device 200 .

[0078] In an embodiment of the present application, the above-mentioned bidirectional cutting and mixing pile drilling rig is adopted, and the rotating mixing element is detachably connected to the power device 200. The number of rotating mixing elements can be flexibly adjusted based on work requirements, so as to achieve multi-purpose use of one machine, adapt to different construction site conditions and different design requirements for foundation reinforcement and treatment, and further improve the practicality of the mixing pile drilling rig.

[0079] In a preferred embodiment, Figures 1 to 9 As shown, a plurality of groups of first stirring teeth 321 arranged in an axial array are fixedly disposed on the forward stirring shaft 320 , and a plurality of groups of second stirring teeth 341 arranged in an axial array are fixedly disposed on the reverse stirring shaft 340 .

[0080] The first stirring teeth 321 and the second stirring teeth 341 on two adjacent rotating stirring members are respectively arranged alternately along the axial direction.

[0081] It can be understood that since the first stirring teeth 321 and the second stirring teeth 341 on two adjacent rotating stirring elements are arranged alternately, when the power device 200 drives the rotating stirring elements to rotate, the first stirring teeth 321 and the second stirring teeth 341 on the two adjacent rotating stirring elements do not produce position interference, while ensuring the crushing effect of the soil.

[0082] In a preferred embodiment, Figure 1 As shown, the installation pile body includes a base 110 , a support frame 120 , and a column 140 . The column 140 is fixedly disposed on the base 110 and is perpendicular to the ground. The support frame 120 is disposed between the base 110 and the column 140 .

[0083] Among them, a traction lifting device is also provided on the base 110, a guide wheel assembly is provided at the end of the column 140 away from the ground, and a traction rope 130 is connected to the end of the power device 200 away from the rotating stirring element. The traction rope 130 is wound around the guide wheel assembly and connected to the traction lifting device.

[0084] It can be understood that the support frame 120 is used to support the column 140, and the lifting and lowering control of the power device 200 and the rotating stirring element can be achieved through the cooperation of the traction lifting device and the traction rope 130.

[0085] It should be noted that the power device 200, the lifting and lowering driving form of the rotating stirring element and the structural form of the installation pile body are not limited to the above-mentioned one, as long as the driving control of the rotating stirring element can be achieved, and they will not be elaborated here.

[0086] Example 2

[0087] like Figures 1 to 5 , Fig.10 As shown, an internal material delivery pipe 600 connected to an external material delivery device (not shown) is provided inside the rotating stirring member, and an upper nozzle 410 and a lower nozzle 420 connected to the internal material delivery pipe 600 are provided on the rotating stirring member.

[0088] Among them, the upper nozzle 410 is set at the end of the forward stirring shaft 320 away from the reverse stirring shaft 340, or is set at the end of the drill rod 310 close to the forward stirring shaft 320; the lower nozzle 420 is set at the end of the reverse stirring shaft 340 away from the forward stirring shaft 320.

[0089] It is understandable that the upper nozzle 410 and the lower nozzle 420 are spaced apart in the axial direction of the rotating stirring element, thereby ensuring that the rotating stirring element can feed materials at the top and bottom of the drill hole respectively during construction, thereby improving the construction quality.

[0090] In a preferred embodiment, a plurality of internal material delivery pipes 600 are provided inside the rotating stirring element. The plurality of internal material delivery pipes 600 are respectively used for delivering slurry or gas, and are respectively connected to the upper nozzle 410 and the lower nozzle 420 .

[0091] In a preferred embodiment, Figure 2 As shown, five rotating stirring members are installed on the power device 200, and the five rotating stirring members are parallel to each other and arranged in a uniform array in an "I" shape.

[0092] It can be understood that at this time, the mixing pile drilling rig is a five-axis system, and the power device 200 can drive the five rotating stirring elements to rotate separately. The five rotating stirring elements are respectively provided with an upper nozzle 410 and a lower nozzle 420, and the forward stirring shaft 320 and the reverse stirring shaft 340 rotate in opposite directions under the action of the fixed axis reversing component 330.

[0093] In a preferred embodiment, Figure 3 As shown, four rotating stirring members are installed on the power device 200, and the four rotating stirring members are parallel to each other and arranged in a uniform array in an "I" shape.

[0094] It can be understood that the rotating stirring element is detachably connected to the power device 200. In this case, the mixing pile drilling rig is a four-axis system. Specifically, the four-axis system can be formed by removing the rotating stirring element at the edge of one side of the five-axis system. While meeting the size of the reinforced body and the site requirements, there is no need to purchase a four-axis mixing pile machine separately.

[0095] In a preferred embodiment, Figure 4 As shown, three rotating stirring members are installed on the power device 200, and the three rotating stirring members are parallel to each other and arranged in a uniform array in an "I" shape.

[0096] It can be understood that the rotating stirring element is detachably connected to the power device 200. In this case, the mixing pile drilling rig is a three-axis system. Specifically, the three-axis system can be formed by removing the rotating stirring elements at the edge positions of both sides of the five-axis system. In this case, the total weight of the pile driver can be reduced, saving the processing cost of the construction site. At the same time, it is also easy to meet the bearing capacity conditions of the foundation of the site and achieve the requirements of safe construction without the need to purchase a three-axis mixing pile driver separately.

[0097] In a preferred embodiment, Figure 5 As shown, two rotating stirring members are installed on the power device 200, and the two rotating stirring members are parallel to each other and arranged at intervals.

[0098] It can be understood that the rotating stirring element is detachably connected to the power device 200. At this time, the mixing pile drilling rig is a two-axis system. Specifically, the two-axis system can be formed by removing three rotating stirring elements from the five-axis system and retaining two adjacent rotating stirring elements. Since the construction area is reduced, the underground pile foundation can be effectively avoided, and the reinforcement of the soft strata between the piles can be achieved without the need to bring in another two-axis mixing pile machine.

[0099] Example 3

[0100] like Figures 6 to 10 As shown, an external material delivery pipe 500 is provided between two adjacent rotating stirring members, the external material delivery pipe 500 is connected to an external material delivery device (not shown) and is parallel to the rotating stirring members, and an upper nozzle 410 is provided on the external material delivery pipe.

[0101] An inner feeding pipe 600 connected to an external feeding device (not shown) is provided inside the rotating stirring member, and a lower nozzle 420 communicating with the inner feeding pipe 600 is provided on the rotating stirring member.

[0102] Among them, the upper nozzle 410 is arranged at one end of the external material delivery pipe 500 close to the reverse stirring shaft 340, and is located at the end of the forward stirring shaft 320 away from the reverse stirring shaft 340, or is located at the end of the drill rod 310 close to the forward stirring shaft 320; the lower nozzle 420 is arranged at one end of the reverse stirring shaft 340 away from the forward stirring shaft 320.

[0103] It is understandable that since the outer feed pipe 500 is arranged outside the rotating stirring element, the number of inner feed pipes 600 arranged inside the rotating stirring element can be reduced. At the same time, the outer feed pipe 500 is arranged between two adjacent rotating stirring elements to ensure the uniformity of feed.

[0104] In a preferred embodiment, a plurality of internal material delivery pipes 600 are provided inside the rotating stirring element. The plurality of internal material delivery pipes 600 are respectively used for delivering slurry or gas, and are respectively connected to the upper nozzle 410 and the lower nozzle 420 .

[0105] In a preferred embodiment, Figure 6 As shown, five rotating stirring members are installed on the power device 200, and the five rotating stirring members are parallel to each other and arranged in a uniform array in an "I" shape.

[0106] There are four external material delivery pipes 500 , and the four external material delivery pipes 500 are respectively located between two adjacent rotating stirring members.

[0107] In a preferred embodiment, Figure 7 As shown, four rotating stirring members are installed on the power device 200, and the four rotating stirring members are parallel to each other and arranged in a uniform array in an "I" shape.

[0108] There are three external material delivery pipes 500 , and the three external material delivery pipes 500 are respectively located between two adjacent rotating stirring members.

[0109] It can be understood that the rotating stirring element is detachably connected to the power device 200. In this case, the mixing pile drilling rig is a four-axis system. Specifically, the four-axis system can be formed by removing the rotating stirring element at one edge of a five-axis system.

[0110] In a preferred embodiment, Figure 8 As shown, three rotating stirring members are installed on the power device 200, and the three rotating stirring members are parallel to each other and arranged in a uniform array in an "I" shape.

[0111] There are two external material delivery pipes 500 , and the two external material delivery pipes 500 are respectively located between two adjacent rotating stirring members.

[0112] It can be understood that the rotating stirring element is detachably connected to the power device 200. In this case, the mixing pile drilling rig is a three-axis system. Specifically, the three-axis system can be formed by removing the rotating stirring elements at the edge positions of both sides of the five-axis system.

[0113] In a preferred embodiment, Fig. 9As shown, two rotating stirring members are installed on the power device 200, and the two rotating stirring members are parallel to each other and arranged at intervals.

[0114] There is one external material delivery pipe 500 and it is located between the two rotating stirring members.

[0115] It can be understood that the rotating stirring element is detachably connected to the power device 200. In this case, the mixing pile drilling rig is a two-axis system. Specifically, the two-axis system can be formed by removing three rotating stirring elements from a five-axis system and retaining two adjacent rotating stirring elements.

[0116] Example 4

[0117] like Fig.10 As shown, the fixed axis reversing assembly 330 includes a linkage gear 332 and a coaxial driving gear 331 and a driven gear 333. The driving gear 331 is fixedly arranged at one end of the forward stirring shaft 320 away from the drill rod 310, and the driven gear 333 is fixedly arranged at one end of the reverse stirring shaft 340 close to the drill rod 310 and is rotatably connected to the forward stirring shaft 320.

[0118] The linkage gear 332 is disposed between the driving gear 331 and the driven gear 333 , is rotationally connected to the driven gear 333 , and is meshed with the outer teeth of the driving gear 331 and the inner teeth of the driven gear 333 , respectively.

[0119] It can be understood that when the forward stirring shaft 320 drives the driving gear 331 to rotate along the first direction, the linkage gear 332 rotates under the drive of the driving gear 331, thereby driving the driven gear 333 to rotate along the second direction, thereby realizing bidirectional rotation cutting between the forward stirring shaft 320 and the reverse stirring shaft 340.

[0120] It should be noted that the structural form of the fixed-axis reversing assembly 330 is not limited to the above-mentioned one, as long as it can ensure that the forward stirring shaft 320 and the reverse stirring shaft 340 are coaxial and rotate in opposite directions, which will not be elaborated here.

[0121] In a preferred embodiment, Fig.10 As shown, a plurality of linkage gears 332 are provided between the driving gear 331 and the driven gear 333 , and the plurality of linkage gears 332 are arranged in a ring array about the central axis of the driving gear 331 and the driven gear 333 .

[0122] It can be understood that the transmission between the driving gear 331 and the driven gear 333 is realized by a plurality of interlocking gears 332 , which can further improve the bidirectional rotation stability of the forward stirring shaft 320 and the reverse stirring shaft 340 .

[0123] Example 5

[0124] like Figures 11 to 14As shown, a driving unit for installing the external material delivery pipe 500 is also included.

[0125] The driving unit includes a fixed frame 501 on which an adapter 506 parallel to the rotating stirring element is rotatably provided. The adapter 506 is provided with a clearance hole 505 axially therethrough. A plurality of fixing bolts 516 are fixed on the end surface of the adapter 506 close to the ground.

[0126] The driving unit also includes a positioning frame 503 fixedly set on the fixed frame 501, and an introduction hole 504 corresponding to the position of the clearance hole 505 is provided on the positioning frame 503. A limiting rod 515 parallel to the central axis of the adapter 506 is fixed on the positioning frame 503, and the limiting rod 515 passes through the corresponding position of the clearance hole 505 and extends to the side of the adapter 506 close to the ground.

[0127] A driving motor 509 is fixedly mounted on the fixed frame 501 , a driving pulley 511 is fixedly mounted on a power shaft 510 of the driving motor 509 , a driven pulley 507 is fixedly mounted on the adapter 506 , and the driven pulley 507 and the driving pulley 511 are connected via a transmission belt 508 .

[0128] The external material delivery pipe 500 includes a connecting drum 512, on which a connecting cavity 513 is axially penetrated, and a plurality of through holes corresponding to the positions of fixing bolts 516 are provided on the end surface of the connecting drum 512 away from the ground. The plurality of fixing bolts 516 can penetrate the through holes at corresponding positions on the connecting drum 512, and the fixing connection of the connecting drum 512 to the adapter 506 is achieved by a fixing nut 520 threadedly connected to the fixing bolt 516.

[0129] The external material delivery pipe 500 also includes a lifting cylinder 514 arranged in the connecting chamber 513 and threadedly connected to the inner wall of the connecting chamber 513. The lifting cylinder 514 is provided with an outlet hole 523 which opens to the side away from the ground and is connected to the connecting chamber 513. The upper nozzle 410 is arranged at the end of the lifting cylinder 514 close to the ground and is connected to the outlet hole 523.

[0130] A limit piece 517 is rotatably connected on the inner wall of the connecting cavity 513, and a transition hole 522 is axially penetrated on the limit piece 517. A limit hole 521 is provided on the end face of the limit piece 517 away from the ground, and a guide rod 518 parallel to the central axis of the lifting cylinder 514 is fixed on the end face close to the ground.

[0131] The lifting cylinder 514 is provided with a guide hole 519 which is slidably connected to the guide rod 518 . The limiting rod 515 is specifically configured as a non-rotating body. When the adapter 506 and the connecting rotating cylinder 512 are connected, the limiting rod 515 is engaged with the limiting hole 521 .

[0132] It can be understood that the external material delivery pipe 500 is detachably connected to the drive unit. When the external material delivery pipe 500 is installed on the drive unit, the end of the connecting drum 512 away from the ground is abutted against the end of the adapter 506 close to the ground. The fixing bolt 516 on the adapter 506 passes through the through hole on the connecting drum 512, and the fixing nut 520 is installed on the fixing bolt 516 to achieve a fixed connection between the connecting drum 512 and the adapter 506. At this time, the limiting rod 515 is engaged with the limiting hole 521 on the limiting member 517. When the drive motor 509 drives the adapter 506 to rotate through the power shaft 510 and the driving pulley 511, the When the lifting cylinder 514 is in motion, the connecting drum 512 will rotate synchronously. Since the limiting member 517 is limited by the limiting rod 515, the limiting member 517 and the connecting drum 512 will rotate relative to each other. Because the guide rod 518 is plugged into the guide hole 519 on the lifting cylinder 514, the rotation of the lifting cylinder 514 relative to the limiting member 517 is restricted at this time, and the lifting cylinder 514 and the connecting drum 512 will rotate relative to each other. Under the action of the thread between the two, the lifting cylinder 514 moves axially relative to the connecting drum 512, thereby adjusting the position of the upper nozzle 410 relative to the lower nozzle 420, thereby realizing adaptive adjustment under different working conditions.

[0133] It should be noted that the pipe carrying the material can pass through the inlet hole 504, the yield hole 505, the connecting cavity 513, the transition hole 522, the outlet hole 523 and realize the material output through the upper nozzle 410. The lifting cylinder 514 is provided with limit stops on both sides of the axial movement in the connecting cavity 513. When the lifting cylinder 514 reaches the limit stop, the rotation of the connecting rotating cylinder 512 and the adapter 506 is restricted, and the transmission belt 508 can slip on the driven pulley 507, thereby avoiding damage to the drive motor 509 and ensuring the working stability of the drive unit.

[0134] In an embodiment of the present application, the above-mentioned bidirectional cutting and mixing pile drilling rig is adopted, and the telescopic control of the external material delivery pipe 500 is realized through the driving unit, so as to adjust the relative position between the upper nozzle 410 and the lower nozzle 420, so that the material output position of the upper nozzle 410 can adapt to different working conditions, thereby greatly improving the practicability of the device and the overall operation effect.

[0135] In a preferred embodiment, Fig.11 As shown, a plurality of adapters 506 are rotatably provided on the fixed frame 501 , and the plurality of adapters 506 are respectively located between two adjacent rotating stirring elements.

[0136] The driven pulleys 507 on the plurality of adapters 506 are connected to the driving pulleys 511 via a transmission belt 508 .

[0137] In a preferred embodiment, Figures 11 to 13As shown, a transmission cavity 502 is provided in the fixed frame 501 , and two ends of the adapter 506 are rotatably connected to the inner wall of the transmission cavity 502 close to the ground and the inner wall of the transmission cavity 502 away from the ground respectively.

[0138] The driven pulley 507 and the driving pulley 511 are located in the transmission cavity 502 , and the end of the adapter 506 away from the ground extends to the side of the fixed frame 501 away from the ground.

[0139] Example 6

[0140] like Fig.15 As shown, the monitoring and control parameters of the intelligent control system include the shape, driving parameters and construction parameters of the pile driver.

[0141] Among them, the shape and driving parameters of the pile driver include: position coordinates, verticality, pile top elevation, pile bottom elevation, drilling speed, lifting speed, and stirring speed of the rotating stirring element; construction parameters include: grouting volume of the upper nozzle 410, and grouting volume and jet volume of the lower nozzle 420.

[0142] It is understandable that the monitoring and control parameter forms of the intelligent control system are not limited to the above-mentioned ones, as long as the intelligent construction control of the mixing pile drilling rig can be realized, which will not be elaborated here.

[0143] Example 7

[0144] like Fig.15 As shown, the embodiment of the present application provides a control method, which is applicable to the bidirectional cutting and mixing pile drilling rig in any one of the above-mentioned embodiments 1 to 6, including:

[0145] S1, obtaining monitoring parameters of a bidirectional cutting and mixing pile drilling rig;

[0146] S2. Determine whether the monitoring parameters meet the error standard, and adjust the monitoring parameters that do not meet the error standard;

[0147] Among them, the monitoring parameters include construction parameters and the shape and driving parameters of the pile driver.

[0148] In a preferred embodiment, Fig.15 As shown, the shape and driving parameters of the pile driver include: X-axis position coordinate (XW), Y-axis position coordinate (YW), verticality (HI), pile top elevation (T), pile bottom elevation (D), drilling speed (Vx), lifting speed (Vs), and stirring speed (VR) of the rotating stirring element;

[0149] The construction parameters include: upper shotcrete volume (C1), lower shotcrete volume (C2), and air jet volume (M).

[0150] In a preferred embodiment, Fig.15As shown, the construction parameters also include the shared shotcrete volume (C) of the external material delivery pipe 500.

[0151] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0152] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A bidirectional cutting and mixing pile drilling rig, characterized in that: include: Intelligent control system, used to monitor and control the construction status of the mixing pile drilling rig; A power device, which can be lifted and lowered on the installation pile; The power device is provided with a plurality of rotating stirring members, including a fixed-axis reversing assembly, a drill bit and a coaxially arranged drill rod, a forward stirring shaft, and a reverse stirring shaft; The drill rod is connected to the power output end of the power device, one end of the forward stirring shaft is fixedly connected to the end of the drill rod away from the power device, and the other end is connected to the reverse stirring shaft through a fixed axis reversing assembly, and the drill bit is fixedly arranged at the end of the reverse stirring shaft away from the fixed axis reversing assembly; The power device can drive the forward stirring shaft to rotate in a first direction, and the fixed-axis reversing assembly can drive the reverse stirring shaft to rotate in a second direction under the drive of the forward stirring shaft. The first direction and the second direction are specifically opposite directions.

2. A bidirectional cutting and mixing pile drilling rig and control method according to claim 1, characterized in that: The forward stirring shaft and the reverse stirring shaft are respectively fixed with a plurality of stirring teeth arranged in an axial array; Wherein, the stirring teeth on two adjacent rotating stirring members are respectively arranged alternately along the axial direction.

3. A bidirectional cutting and mixing pile drilling rig according to claim 1, characterized in that: The rotating stirring element is detachably connected to the power device, and a plurality of the rotating stirring elements are arranged in a linear array on the power device.

4. A bidirectional cutting and mixing pile drilling rig according to any one of claims 1 to 3, characterized in that: An inner material delivery pipe is arranged inside the rotating stirring member, and an upper nozzle and a lower nozzle connected to the inner material delivery pipe are arranged on the rotating stirring member; Wherein, the upper nozzle is arranged at a position of the forward stirring shaft away from one end of the reverse stirring shaft, or at a position of the drill rod close to one end of the forward stirring shaft; The lower nozzle is arranged at a position of one end of the reverse stirring shaft away from the forward stirring shaft.

5. A bidirectional cutting and mixing pile drilling rig according to any one of claims 1 to 3, characterized in that: An external material delivery pipe parallel to the rotating stirring member is provided between two adjacent rotating stirring members, and an upper nozzle is provided on the external material delivery pipe: An inner material delivery pipe is provided inside the rotating stirring member, and a lower nozzle communicating with the inner material delivery pipe is provided on the rotating stirring member; Wherein, the upper nozzle is arranged at one end of the external material delivery pipe close to the reverse stirring shaft, and is located at a position of the forward stirring shaft away from one end of the reverse stirring shaft, or is located at a position of the drill rod close to one end of the forward stirring shaft; The lower nozzle is arranged at a position of one end of the reverse stirring shaft away from the forward stirring shaft.

6. A bidirectional cutting and mixing pile drilling rig according to claim 5, characterized in that: Also included is a drive unit for mounting an external material delivery pipe; The driving unit comprises: Fixed frame; The adapter is rotatably arranged on the fixed frame and parallel to the rotating stirring element, is provided with a clearance hole along the axial direction, is fixedly provided with a driven pulley, and has a plurality of fixing bolts fixedly provided on the end surface close to the ground; A positioning frame is fixedly arranged on the fixed frame and is provided with an introduction hole corresponding to the position of the clearance hole; A limiting rod is fixedly arranged on the positioning frame and is parallel to the central axis of the adapter, passes through the corresponding position giving hole and extends to the side of the adapter close to the ground; A driving motor is fixedly arranged on the fixed frame, and a driving pulley is fixedly arranged on the power shaft; The external material delivery pipe comprises: The connecting drum has a connecting cavity extending through the axial direction, and a plurality of through holes corresponding to the positions of the fixing bolts are arranged on the end surface away from the ground; A lifting cylinder is arranged in the connecting cavity and is threadedly connected to the inner wall of the connecting cavity, and is provided with an outlet hole which opens to a side away from the ground and communicates with the connecting cavity; A limiter is rotatably arranged on the inner wall of the connection cavity, a transition hole is axially penetrated therethrough, a limiter hole is arranged on the end face away from the ground, and a guide rod parallel to the central axis of the lifting cylinder is fixedly arranged on the end face close to the ground; Wherein, a plurality of the fixing bolts can penetrate through holes at corresponding positions on the connecting drum, and the connecting drum can be fixedly connected to the adapter by fixing nuts threadedly connected to the fixing bolts; The lifting cylinder is provided with a guide hole which is slidably connected to the guide rod, and the upper nozzle is arranged at one end of the lifting cylinder close to the ground and is connected to the lead-out hole; The limiting rod is specifically configured as a non-rotating body, and when the adapter is connected to the connecting drum, the limiting rod is engaged with the limiting hole.

7. The bidirectional cutting and mixing pile drilling rig according to claim 1, characterized in that: The fixed-axis reversing assembly includes a linkage gear and a coaxial driving gear and a driven gear; The driving gear is fixedly arranged at the end of the forward stirring shaft away from the drill rod, and the driven gear is fixedly arranged at the end of the reverse stirring shaft close to the drill rod and is rotationally connected to the forward stirring shaft; The linkage gear is arranged between the driving gear and the driven gear, is rotationally connected to the driven gear and is respectively meshed with the external teeth of the driving gear and the internal teeth of the driven gear.

8. A bidirectional cutting and mixing pile drilling rig according to claim 7, characterized in that: A plurality of linkage gears are provided between the driving gear and the driven gear, and the plurality of linkage gears are arranged in a ring array about the central axis of the driving gear and the driven gear.

9. A control method, characterized in that: The bidirectional cutting and mixing pile drilling rig according to any one of claims 1 to 8 comprises: Obtain monitoring parameters of bidirectional cutting and mixing pile drilling rig; Determine whether the monitoring parameters meet the error standard, and adjust the monitoring parameters that do not meet the error standard; The monitoring parameters include construction parameters and the shape and driving parameters of the pile driver.

10. A control method according to claim 9, characterized in that: The shape and driving parameters of the pile driver include X-axis position coordinates, Y-axis position coordinates, verticality, pile top elevation, pile bottom elevation, drilling speed, lifting speed, and stirring speed of the rotating stirring element; The construction parameters include upper shotcrete volume, lower shotcrete volume, air jet volume, or also include shared shotcrete volume of external material delivery pipe.

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