Single-shaft three-dimensional stirring drilling tool
By using an interactive insertion matching design for a single-axis three-dimensional mixing drill bit, the problem of the mixing blades being unable to effectively break up the soil was solved, resulting in a more efficient mixing effect and uniform soil mixing, while reducing power loss.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-03-27
AI Technical Summary
Existing single-axis mixing drills cannot effectively break up undisturbed soil and cohesive soil during the mixing process, resulting in insufficient mixing and high power loss.
A single-axis three-dimensional stirring drill is adopted. Through the interactive insertion and matching design of the drill bit and the stirring component, a dynamic interference cutting interface is formed. By utilizing the superimposed shear force of the first set of cutting teeth and stirring teeth, the dual functions of axial cutting and radial stirring are realized, reducing adhesion, improving crushing efficiency, and eliminating power loss through a single-axis transmission structure.
It improves the crushing efficiency and mixing uniformity of foundation soil, reduces power loss, and enhances the mixing effect and the uniformity of soil mixing.
Smart Images
Figure CN224048120U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of civil engineering technology, and in particular to a single-axis three-dimensional mixing drill. Background Technology
[0002] There are many problems with the current construction of single-axis mixing piles, mainly: 1. The rotation of the mixing blades drives the soil to move along the rotation direction of the blades, squeezing the soil outwards. After the blades pass, the squeezed soil moves back into the hole. There is no relative cutting and breaking process between the blades and the soil, and the soil is squeezed into clods. The space between the mixing blades is filled with soil. During the rotation and up-and-down movement, there are no other blades to cut and break this part of the soil, so a large amount of original soil remains after the mixing blades have finished mixing. 2. The space between the mixing blades is filled with soil. The cohesive soil covers the mixing blades and cannot be effectively broken. The squeezing and disturbance of the mixing blades to the outside is very obvious. 3. Traditional bidirectional rotating single-axis mixing pile machines use dual power to drive the blades on two concentric drill rods to rotate, so that the upper and lower mixing blades rotate in two directions. However, they do not achieve relative mixing in the same space. The mixing of the soil in the pile hole is still insufficient, and there is a defect that the soil between the mixing blades cannot be broken.
[0003] However, the inventors discovered at least the following technical problems in the related technology: there is undisturbed soil between the stirring blades arranged on the stirring shaft, which cannot be effectively broken up, and the sprayed solidifying agent cannot be mixed with the fine soil particles and undergo a hydration reaction to form a solid. Utility Model Content
[0004] One object of this application is to provide a single-axis three-dimensional stirring drill tool, which at least solves the above-mentioned problems.
[0005] To achieve the above objectives, some embodiments of this application provide a single-axis three-dimensional stirring drill, comprising:
[0006] A drill bit, located at the end of a drill rod and rotatable relative to the drill rod, includes a first set of cutting teeth arranged radially.
[0007] A stirring element, disposed on the drill rod, includes a first set of stirring teeth arranged radially; the first set of stirring teeth and the first set of cutting teeth are interlocked and matched.
[0008] When the drill bit rotates relative to the mixing element, the first set of cutting teeth and the first set of mixing teeth rotate relative to each other in an alternating insertion manner to cut and mix the soil around the mixing element.
[0009] Compared with the related art, in the scheme provided by the embodiment of the application, the relative rotation of the drill bit and the stirring piece forms a dynamic interference cutting interface, so that the first group of cutting teeth and the first group of stirring teeth generate superimposed shear force in the cross motion process, thereby improving the crushing efficiency of the foundation soil; the interactive insertion and matching of the first group of cutting teeth and the first group of stirring teeth form a spatial spiral shear net, which simultaneously realizes the axial cutting and radial stirring dual functions in the single-shaft system, and can improve the mixing uniformity of the crushed foundation soil; in addition, the dynamic cross structure of the two tooth groups forms a self-cleaning working mode, which can effectively reduce the adhesion degree of the crushed foundation soil to the surface of the cutting teeth and the stirring teeth; and the single-shaft transmission structure eliminates the power loss of the traditional double-shaft system, thereby improving the torque transmission efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0010] One or more embodiments are illustrated by way of example in the figures that form a part of this disclosure and which are shown by way of illustration in the drawings and are not intended to be limiting of the embodiments. Like references numerals in the figures indicate like elements unless otherwise specifically indicated.
[0011] Figure 1 is a structural schematic diagram of a single-shaft three-dimensional stirring drill provided by the embodiment of the disclosure;
[0012] Figure 2 is another structural schematic diagram of a single-shaft three-dimensional stirring drill provided by the embodiment of the disclosure;
[0013] Figure 3 is another structural schematic diagram of a single-shaft three-dimensional stirring drill provided by the embodiment of the disclosure;
[0014] Figure 4 is another structural schematic diagram of a single-shaft three-dimensional stirring drill provided by the embodiment of the disclosure;
[0015] Figure 5 is another structural schematic diagram of a single-shaft three-dimensional stirring drill provided by the embodiment of the disclosure;
[0016] Figure 6 is another structural schematic diagram of a single-shaft three-dimensional stirring drill provided by the embodiment of the disclosure;
[0017] Figure 7 is another structural schematic diagram of a single-shaft three-dimensional stirring drill provided by the embodiment of the disclosure;
[0018] Figure 8 is a structural schematic diagram of a drill bit provided by the embodiment of the disclosure;
[0019] Figure 9 is a structural schematic diagram of a first group of cutting teeth of a drill bit provided by the embodiment of the disclosure;
[0020] Figure 10is another structural schematic view of the first group of cutting teeth of the drill bit provided by the embodiments of the present disclosure;
[0021] Figure 11 is a structural schematic view of the stirring member provided by the embodiments of the present disclosure;
[0022] Figure 12 is another structural schematic view of the single-shaft three-dimensional stirring drill provided by the embodiments of the present disclosure;
[0023] Figure 13 is another structural schematic view of the single-shaft three-dimensional stirring drill provided by the embodiments of the present disclosure;
[0024] Figure 14 is a structural schematic view of the rotary steering device provided by the embodiments of the present disclosure.
[0025] Reference signs:
[0026] 10: drill bit; 101: first group of cutting teeth; 102: second group of cutting teeth; 103: third group of cutting teeth; 104: main body; 105: material inlet;
[0027] 20: stirring member; 201: first group of stirring teeth;
[0028] 30: drill rod; 40: material conveying pipe; 50: first power device; 70: second power device;
[0029] 60: rotary steering device; 601: forward rotation shaft; 6011: driving tooth; 602: fixed shaft gear train; 603: reverse rotation shaft; 6031: driven tooth. DETAILED DESCRIPTION
[0030] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.
[0031] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion.
[0032] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.
[0033] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally configured; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.
[0034] Unless otherwise specified, the term "a plurality of" means two or more.
[0035] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B represents: A or B.
[0036] The term "and / or" is a description of the association between objects, which means that there can be three relationships. For example, A and / or B means: A or B, or, A and B, the three relationships.
[0037] It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.
[0038] In combination Figures 1 to 14 As shown in the drawings, the single-shaft three-dimensional stirring drilling tool provided by the embodiments of the present disclosure comprises a drill pipe 30, a drill bit 10 and a stirring piece 20. The drill pipe 30 is connected to a drilling machine, and under the action of the drilling machine, the single-shaft three-dimensional stirring drilling tool moves up and down. The drill bit 10 is arranged at the end of the drill pipe 30 and can rotate relative to the drill pipe 30, and comprises a first group of cutting teeth 101 arranged in the radial direction; the stirring piece 20 is arranged on the drill pipe 30 and comprises a first group of stirring teeth 201 arranged in the radial direction; the first group of stirring teeth 201 and the first group of cutting teeth 101 are in an interpenetrating matching relationship; under the condition that the drill bit 10 rotates relative to the stirring piece 20, the first group of cutting teeth 101 and the first group of stirring teeth 201 rotate relative to each other in an interpenetrating manner to cut and stir the soil around the stirring piece.
[0039] The single-shaft three-dimensional mixing drill provided by the embodiment of the present disclosure can form a dynamic cutting matrix and simultaneously realize cutting and mixing in X, Y and Z directions, thereby breaking through the limitation of traditional mixing drills that can only cut and mix in two directions, improving the working efficiency and the uniformity of the broken ground soil.
[0040] The single-shaft three-dimensional mixing drill provided by the embodiment of the present disclosure can form a dynamic cutting matrix and simultaneously realize cutting and mixing in X, Y and Z directions, thereby breaking through the limitation of traditional mixing drills that can only cut and mix in two directions, improving the working efficiency and the uniformity of the broken ground soil.
[0041] It should be noted that the coaxial arrangement of the drill bit 10 and the drill rod 30 and the design of the dynamic interactive insertion tooth group of the first group of cutting teeth 101 and the second group of mixing teeth can not only improve the cutting and mixing power of the drill, but also eliminate the defects of the mixing teeth being wrapped in the transmission mixing pile machine and the low efficiency of breaking viscous soil blocks.
[0042] It should be noted that the coaxial arrangement of the drill bit 10 and the drill rod 30 and the design of the dynamic interactive insertion tooth group of the first group of cutting teeth 101 and the second group of mixing teeth can not only improve the cutting and mixing power of the drill, but also eliminate the defects of the mixing teeth being wrapped in the transmission mixing pile machine and the low efficiency of breaking viscous soil blocks.
[0043] Optionally, the interactive insertion depth of the first group of cutting teeth 101 and the first group of mixing teeth 201 is controlled to be 30%-70% of the overlapping degree of the tooth height of the cutting teeth and the mixing teeth. The lower limit of 30% ensures that the cutting teeth effectively cut into the pre-crushing area formed by the mixing teeth, so that the specific energy consumption is reduced by 18-22%. The upper limit of 70% prevents the sharp increase of torque caused by excessive interference, and 30% of the gap height is reserved to form a continuous mud channel, so that the broken mud flows smoothly.
[0044] In actual application, preferably, the optimal overlap area makes the uniformity of tooth surface contact stress distribution reach 0.8-1.2, which helps to prolong the service life of the cutting teeth and the mixing teeth.
[0045] Optionally, the first set of cutting teeth 101 comprises a plurality of longitudinal teeth, the longitudinal teeth being perpendicular to the transverse teeth, and the plurality of longitudinal teeth being arranged uniformly in intervals. In this way, the cutting trajectory can be optimized, and the dynamic balance can be improved during the cutting and mixing process.
[0046] Optionally, the drill bit 10 comprises a plurality of first sets of cutting teeth 101, the plurality of first sets of cutting teeth 101 being arranged uniformly in intervals along the circumference of the drill bit 10 body 104. The axial uniform distribution of the plurality of first sets of cutting teeth 101 can improve the cutting and mixing effect during the cutting and mixing process, and can also ensure the balance of thermal load, thereby avoiding the interference caused by the cross insertion of the cutting teeth and the mixing teeth due to local thermal deformation.
[0047] Optionally, the first set of mixing teeth 201 comprises a plurality of longitudinal teeth, the longitudinal teeth being perpendicular to the transverse teeth, and the plurality of longitudinal teeth being arranged uniformly in intervals. In this way, the axial pressure can be balanced, and the mixing index after breaking the soil can be improved during the cutting and mixing process.
[0048] It should be noted that the length of the first cutting teeth and the first mixing teeth is determined according to actual conditions, and is not specifically limited herein. Similarly, the number of the first set of cutting teeth 101 and the number of the longitudinal teeth thereof, and the number of the first set of mixing teeth 201 and the number of the longitudinal teeth thereof, are determined according to actual conditions, and are not specifically limited herein. However, optionally, the number of the first set of cutting teeth 101 can be three or four, and the number of the first set of mixing teeth 201 can be three or four.
[0049] Optionally, the shape of the first cutting teeth and the first mixing teeth can be strip-shaped, but is not limited to the above shape.
[0050] Optionally, the longitudinal teeth of the first set of cutting teeth 101 are arranged in parallel with the axis of the drill rod 30; and the longitudinal teeth of the first set of mixing teeth 201 are arranged in parallel with the axis of the drill rod 30.
[0051] During the cutting and mixing process, the longitudinal teeth of the first set of cutting teeth 101 and the longitudinal teeth of the first set of mixing teeth 201 are arranged vertically and in parallel to form a normal cutting matrix, so that the drill can simultaneously realize the cutting and mixing in the X, Y and Z directions, thereby breaking through the traditional mixing drill which only realizes the cutting and mixing in two directions. In this way, the working efficiency is improved, and the uniformity of the broken ground soil is also improved. In addition, the transverse cutting force can be reduced, and the axial thrust can be improved.
[0052] Optionally, the first set of cutting teeth 101 is a single-sided comb-shaped cutting tooth set or a double-sided comb-shaped cutting tooth set, and in the case of the single-sided comb-shaped cutting tooth set, the first set of cutting teeth 101 is arranged on the side away from the drill bit 10, that is, the cutting end of the first set of cutting teeth is understood to be upward, while the cutting end of the drill bit 10 is downward and is the end that first contacts the ground soil.
[0053] Regardless of the single-sided comb-shaped cutting tooth set or the double-sided comb-shaped cutting tooth set, the spaced broken surfaces are formed by the comb-shaped cutting tooth set to improve the crushing rate. In addition, the comb-shaped cutting teeth and the comb-shaped stirring teeth arranged in pairs can eliminate the defect that the stirring blades of the traditional stirrer are wrapped by clay and cannot break the soil.
[0054] In the case of the single-sided comb-shaped cutting tooth set, the first set of cutting teeth 101 is arranged on the side away from the drill bit 10. It can be understood that the drill bit 10 cuts downward, and the longitudinal teeth of the first set of cutting teeth 101 are arranged upward, and are opposite to the longitudinal teeth of the first set of stirring teeth 201 to fully break the surrounding clay.
[0055] Optionally, in the case of the single-sided comb-shaped cutting tooth set, the first set of stirring teeth 201 is a single-sided comb-shaped stirring tooth set. The first set of stirring teeth 201 is arranged in pairs with the first set of cutting teeth 101, the first set of cutting teeth 101 is arranged upward, the first set of stirring teeth 201 is arranged downward, and the two are in an interlocking state. The first set of cutting teeth 101 rotates under the action of the power and relatively rotates with the first set of stirring teeth 201 to relatively cut and stir, improve the cutting and stirring efficiency, and fully break the surrounding clay. The combination is shown in Figure 1 , 3 , 4, 7-9.
[0056] Optionally, in the case of the double-sided comb-shaped cutting tooth set, the first set of stirring teeth 201 is a frame-shaped comb-shaped stirring tooth set. At this time, the first set of stirring teeth 201 is a frame structure, and the first set of cutting teeth 101 is located in the frame of the first set of stirring teeth 201. The double-sided comb-shaped cutting tooth set and the frame-shaped comb-shaped stirring tooth set in this embodiment expand the range of cutting and stirring of the drill, have the characteristics of large amount of broken soil in unit time and high efficiency, thereby further improving the cutting and stirring efficiency. The combination is shown in Figure 2 , 4 , 6, 10, 11.
[0057] Optionally, the drill bit 10 further comprises a main body 104, and the first set of cutting teeth 101 is circumferentially arranged on the main body 104; the second set of cutting teeth 102 is constructed at the first end of the main body 104, and the longitudinal teeth thereof are arranged in parallel with the axis of the main body 104. Here, the first end of the main body 104 can be understood as the cutting end of the drill bit 10.
[0058] The second set of cutting teeth 102 is located at the first end of the main body 104, that is, the second set of cutting teeth 102 first contacts the soil layer when the drilling tool is about to perform soil cutting, and cuts and crushes the soil layer under the action of power. It can be understood that the second set of cutting teeth 102 is the main cutting tooth. After the second set of cutting teeth 102 forms an initial crushing zone, the first set of cutting teeth 101 performs secondary fine crushing to strengthen the crushing degree, and the first set of stirring teeth 201 improves the mixing uniformity of the crushed soil.
[0059] The longitudinal teeth of the second set of cutting teeth 102 are arranged in parallel with the axis of the main body 104, which can reduce the transverse cutting force and improve the axial thrust.
[0060] Optionally, the drill bit 10 further comprises: a third set of cutting teeth 103, which is arranged along the circumference of the main body 104 and is parallel to the longitudinal teeth of the second set of cutting teeth 102; wherein the length of the longitudinal teeth of the third set of cutting teeth 103 gradually shortens in the direction away from the axis of the main body 104.
[0061] The third set of cutting teeth 103 is provided to form a stepped soil breaking structure with the second set of cutting teeth 102 (main cutting tooth) and the first set of cutting teeth 101. The second set of cutting teeth 102 performs primary crushing, the third set of cutting teeth 103 performs secondary crushing, and the first set of cutting teeth 101 cooperates with the first set of stirring teeth 201 to achieve tertiary crushing and stirring purposes.
[0062] The length of the longitudinal teeth of the third set of cutting teeth 103 gradually shortens in the direction away from the axis of the main body 104, that is, the third set of cutting teeth 103 forms a stepped difference with the second set of cutting teeth 102, which not only helps to crush layer by layer, but also can maintain the sharpness of the drill bit 10 to ensure the crushing effect.
[0063] Optionally, the third set of cutting teeth 103 maintains a preset axial distance from the second set of cutting teeth 102 and forms a stepped soil breaking structure. In this way, the soil crushed by the second set of cutting teeth 102 (main cutting tooth) can be transported to the third set of cutting teeth 103 for secondary crushing. That is, the distance between the third set of cutting teeth 103 and the second set of cutting teeth 102 helps to transport the crushed soil.
[0064] Optionally, the drill bit 10 is a hollow structure for setting a material conveying pipe 40; wherein the side wall of the drill bit 10 is configured with a material port 105 for communicating with the material conveying pipe 40.
[0065] In actual application, when the thickness of deep and weak clay soil layer is greater than 15m, the stirring pile for reinforcing or forming a composite pile foundation is needed to quickly cut, stir, crush and break the weak clay soil into small particles, and spray a solidifying agent to combine with the soil particles together, and then form a solidified soil through hydration reaction.
[0066] Thus, the material conveying pipe 40 is arranged in the drill bit 10 to convey the material such as the solidifying agent, and the drill bit 10 sprays the solidifying agent into the surrounding soil particles through the material port 105 in the process of crushing and stirring, so that the surrounding soil particles are combined with the solidifying agent to form the solidified soil through the hydration reaction to meet the use requirement.
[0067] Optionally, the single-shaft three-dimensional stirring drill further comprises a first power device 50 connected with the drill bit 10 to drive the drill bit 10 and the first set of cutting teeth 101 to rotate relative to the first set of stirring teeth 201.
[0068] The first power device 50 is connected with the drill bit 10 to directly drive the drill bit 10, which can effectively reduce the loss of power transmission, so as to realize the high-speed rotation of the drill bit 10 and further improve the crushing efficiency of the soil body.
[0069] The first power device 50 avoids the second set of cutting teeth 102 and the third set of cutting teeth 103.
[0070] For example, the first set of cutting teeth 101 can be arranged around the first power device 50. For example, the first power device 50 can be located between the first set of cutting teeth 101 and the third set of cutting teeth 103.
[0071] Optionally, the single-shaft three-dimensional stirring drill further comprises a second power device 70 located at the top of the drill rod and connected to drive the first set of stirring teeth 201 to rotate. The second power device is connected with the drill rod to facilitate disassembly and maintenance.
[0072] Optionally, the single-shaft three-dimensional stirring drill further comprises a rotary steering device 60 sleeved on the drill rod 30 and connected with the stirring part 20 to drive the stirring part 20 to rotate reversely relative to the first set of cutting teeth.
[0073] Since the drill rod 30 has a large weight and volume, the shear force generated by the first set of cutting teeth 101 and the first set of stirring teeth 201 of the stirring part 20 through cutting and stirring is difficult to drive the drill rod 30 to rotate, so that the stirring part 20 is kept stationary and the first set of cutting teeth 101 rotates reversely relative to the first set of stirring teeth 201.
[0074] The rotary steering device 60 is arranged to drive the stirring part 20 to rotate, so that the stirring part 20 rotates reversely relative to the first set of cutting teeth 101, the cross-stirring frequency between them is improved, and the stirring effect on the soil particles is further improved, and the mixing uniformity of the soil particles is improved.
[0075] Optionally, the rotating steering device 60 comprises a positive rotation shaft 601, a fixed shaft gear train 602 and a reverse rotation shaft 603, wherein the outer side wall of the positive rotation shaft 601 is configured with a driving tooth 6011, the reverse rotation shaft 603 is a hollow structure, the inner side wall of the reverse rotation shaft 603 is configured with a driven tooth 6031, and the driving tooth 6011 and the driven tooth 6031 are connected in meshing through the fixed shaft gear train 602. In addition, the stirring part 20 is connected with the reverse rotation shaft 603, the positive rotation shaft 601 is sleeved on the drill pipe 30 and can rotate relative to the drill pipe 30. The rotating steering device 60 further comprises a driving part, the driving part drives the positive rotation shaft 601 to rotate, the positive rotation shaft 601 drives the reverse rotation shaft 603 to rotate through the fixed shaft gear train 602, so as to realize the purpose of driving the stirring part 20 to rotate, so that the stirring part 20 and the drill bit 10 can rotate and rotate in opposite directions.
[0076] Compared with the prior art, the engineering problems of poor pile forming quality and low work efficiency of the deep silt and soft clay reinforced mixing pile are solved. Through the relative rotation of the first set of cutting teeth 101 and the first set of mixing teeth 201 configured in pairs, the defects of the mixing teeth being wrapped and the low crushing efficiency of the viscous soil block in the traditional mixing pile machine are eliminated; and by directly connecting the power device 50 with the drill bit 10, i.e. the power device 50 is placed below, the power transmission loss is reduced, and the cutting and mixing speed is improved; and the first set of cutting teeth 101 is made to rotate relative to the first set of mixing teeth 201 by the rotating steering device 60, and the relative rotation is opposite, further improving the cutting and mixing speed.
[0077] The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable one skilled in the art to practice them. Other embodiments can include structural and other changes. The embodiments represent only a few of the possible variations. Individual components and functions are optional unless explicitly required, and the order of operations can be changed. Parts and features of some embodiments can be included or replaced by parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims, and the above-described embodiments should be regarded as exemplary and non-limiting.
Claims
1. A single shaft three-dimensional mixing drill tool comprising a drill pipe, characterized by, Also included are: a drill bit disposed at the end of the drill rod and rotatable relative to the drill rod, the drill bit including a first set of cutting teeth disposed radially; a stirring member disposed on the drill rod, the stirring member including a first set of stirring teeth disposed radially; the first set of stirring teeth and the first set of cutting teeth being in an interpenetrating matching relationship; wherein, upon rotation of the drill bit relative to the stirring member, the first set of cutting teeth and the first set of stirring teeth rotate in an interpenetrating manner relative to each other to cut and stir the earth around the stirring member.
2. The single-shaft three-dimensional stirring drill according to claim 1, wherein: the longitudinal teeth of the first set of cutting teeth are arranged in parallel to the axis of the drill rod; and the longitudinal teeth of the first set of stirring teeth are arranged in parallel to the axis of the drill rod.
3. The single-shaft three-dimensional stirring drill according to claim 1, wherein: the transverse teeth of the first set of cutting teeth are perpendicular to the axis of the drill rod, and the longitudinal teeth of the first set of cutting teeth are disposed perpendicularly on the transverse teeth of the first set of cutting teeth; the transverse teeth of the first set of stirring teeth are perpendicular to the axis of the drill rod, and the longitudinal teeth of the first set of stirring teeth are disposed perpendicularly on the transverse teeth of the first set of stirring teeth.
4. The single-shaft three-dimensional stirring drill according to claim 1, wherein: the first set of cutting teeth is a single-sided comb-shaped cutting teeth set or a double-sided comb-shaped cutting teeth set, and in the case that the first set of cutting teeth is a single-sided comb-shaped cutting teeth set, the first set of cutting teeth is arranged on a side facing away from the drill bit.
5. The single-shaft three-dimensional stirring drill according to claim 4, wherein: in the case that the first set of cutting teeth is a single-sided comb-shaped cutting teeth set, the first set of stirring teeth is a single-sided comb-shaped stirring teeth set.
6. The single-shaft three-dimensional stirring drill according to claim 4, wherein: in the case that the first set of cutting teeth is a double-sided comb-shaped cutting teeth set, the first set of stirring teeth is a frame-shaped comb-shaped stirring teeth set; wherein, the first set of cutting teeth is located within the frame structure of the first set of stirring teeth.
7. The single shaft three-dimensional mixing drill tool of claim 1, wherein, the drill bit is of a hollow structure for disposing a material conveying pipe; wherein, the side wall of the drill bit is configured with a material port for communicating with the material conveying pipe.
8. The single shaft three-dimensional mixing drill tool of claim 1, wherein, Also included are: a first power device connected to the drill bit for driving the drill bit and the first set of cutting teeth to rotate.
9. The single shaft three-dimensional mixing drill tool of claim 1, wherein, Also included are: a second power device located at the top of the drill rod and connected for driving the first set of stirring teeth to rotate.
10. The single shaft three-dimensional mixing drill tool of claim 1, wherein, Also included are: a rotating steering device sleeved on the drill rod and connected to the stirring member for driving the stirring member to rotate in the opposite direction relative to the first set of cutting teeth.