CN114319334A - Concentric three-pipe three-channel drill rod structure for mixing pile machine and combined grouting drilling tool - Google Patents
Concentric three-pipe three-channel drill rod structure for mixing pile machine and combined grouting drilling tool Download PDFInfo
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- CN114319334A CN114319334A CN202210127226.2A CN202210127226A CN114319334A CN 114319334 A CN114319334 A CN 114319334A CN 202210127226 A CN202210127226 A CN 202210127226A CN 114319334 A CN114319334 A CN 114319334A
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- 238000005553 drilling Methods 0.000 title abstract description 11
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 22
- 238000003756 stirring Methods 0.000 claims description 40
- 238000007789 sealing Methods 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 24
- 238000002347 injection Methods 0.000 claims description 19
- 239000007924 injection Substances 0.000 claims description 19
- 239000002689 soil Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention relates to the technical field of engineering machinery, in particular to a concentric three-pipe three-channel drill rod structure for a mixing pile machine and a combined grouting drilling tool, wherein the combined grouting drilling tool comprises an outer drill rod, an inner drill rod, a central rod and a bidirectional mixing drill bit; a first channel is arranged in the central rod; the inner wall of the top of the inner drill rod is connected with the outer wall of the top of the central rod through a heavy-load clamp spring, the inner wall of the lower part of the inner drill rod is connected with the outer wall of the bottom of the central rod through a centering seat ring, and a first annular gap between the central rod and the inner drill rod forms a second channel; the outer wall of the bottom of the inner drill rod is rotatably connected with the inner wall of the lower part of the outer drill rod through the righting limiting ring, and a second annular gap between the inner drill rod and the outer drill rod forms a third channel. The invention has the advantages that the blockage condition of the jet orifice of a certain conveying channel can be found in time, constructors can rapidly solve related problems, the engineering quality of the mixing pile is ensured, and different media can be injected through different conveying channels respectively to meet the requirements of different construction working conditions.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a concentric three-pipe three-channel drill rod structure for a mixing pile machine and a combined grouting drilling tool.
Background
Compared with a one-way mixing pile machine, the two-way mixing pile machine has the advantages of uniform mixing, high pile forming efficiency, good pile forming quality and curing material saving. However, the grouting channel of the drilling tool of the two-way mixing pile machine and the one-way mixing pile machine which are applied at present mainly adopts a mode of one channel of a central rod to convey grout to the bottom part of a drill bit and spray the grout into a stratum through a spray opening. Due to the limitation of the structure of the drilling tool, in order to improve the pile forming quality and the working efficiency, the jet orifice is generally provided with one jet orifice (double nozzle) or a plurality of jet orifices (multi-nozzle) at the bottom of the drill bit and the position of the transverse stirring wing plate respectively, but the two disadvantages exist: firstly, when a certain jet orifice is blocked, earth surface constructors cannot know the blockage at all, so that the continuity and uniformity of the grouting of the underground mixing pile are influenced, and secondly, the setting method can only jet single slurry, but cannot be implemented when multiple media or materials are required to be adopted for jetting.
Disclosure of Invention
The invention aims to solve the technical problems that a plurality of jet ports of one conveying channel are easy to block and only a single medium can be jetted, provides a technical means which is convenient for finding the blocked jet ports and channels, can carry out jetting through different channels and inject different media, and can be applied to a bidirectional stirring technology, thereby greatly improving the construction quality of a stirring pile, and particularly obtaining a concentric three-pipe three-channel drill rod structure for the stirring pile machine, which is greatly improved in the aspects of stirring uniformity and solidified soil strength.
For the purpose of the invention, the following technical scheme is adopted for realizing the purpose:
a concentric three-pipe three-channel drill rod structure for a mixing pile machine comprises an outer drill rod, an inner drill rod and a central rod; a first through channel is arranged in the central rod; the inner wall of the top of the inner drill rod is connected with the outer wall of the top of the central rod through a heavy-load clamp spring, the inner wall of the lower part of the inner drill rod is connected with the outer wall of the bottom of the central rod through a centering seat ring, and a first annular gap between the central rod and the inner drill rod forms a second channel; the outer wall of the bottom of the inner drill rod is rotatably connected with the inner wall of the lower part of the outer drill rod through a righting limiting ring, and the inner drill rod and the outer drill rod can realize relative rotation; a second annular gap between the inner and outer drill rods forms a third passage. The injection port blocking condition of a certain conveying passage can be found in time, constructors on the ground can know the problem through the pressure gauge of the conveying pipeline at once, then the constructors can rapidly solve related problems, the engineering quality of the mixing pile is guaranteed, and when media or curing materials of different types need to be injected, the media or the curing materials can be injected through different conveying passages respectively to meet the requirements of different construction working conditions.
Preferably, the center rod comprises a first upper joint, a first rod body and a first lower joint; the first upper joint and the first lower joint are fixedly connected to the upper end and the lower end of the first rod body respectively. The three-section type is convenient for assembly.
Preferably, the inner drill rod is of an outer flat structure and comprises a second upper joint, a second rod body and a second lower joint; the second upper joint and the second lower joint are respectively and fixedly connected to the upper end and the lower end of the second rod body; the heavy-duty clamp spring is positioned between the bottom of the first upper joint and the top of the second upper joint; the centralizing seat ring is positioned between the bottom of the first lower joint and the top of the second lower joint. The three-section type is convenient for assembly.
Preferably, the outer drill rod adopts an inner flat structure and comprises a third upper joint, a third rod body and a third lower joint; the third upper joint and the third lower joint are respectively and fixedly connected to the upper end and the lower end of the third rod body; the righting limiting ring is located between the lower portion of the second lower connector and the upper portion of the third lower connector. The three-section type is convenient for assembly.
Preferably, the structure of the second upper joint is the same as that of the third upper joint, a plurality of sealing ring grooves are formed in the outer ring of the second upper joint, and a sealing ring is arranged on each sealing ring groove; the outer ring of the second upper joint is provided with a pressure reduction ring groove; the outer ring of the second upper joint is also provided with a first pin hole; a first fixing pin is arranged in the first pin hole; sealing rings are arranged at two ends of the first fixing pin; the structure of the second lower joint is the same as that of the third lower joint, a limiting screw hole is formed in the inner ring of the third lower joint, and a limiting screw is arranged in the limiting screw hole; the inner ring of the third lower joint is also provided with a second pin hole; a second fixing pin is arranged in the second pin hole; and the two ends of the second fixing pin are provided with the sealing rings. The sealing effect of the joint is improved.
Preferably, the centralizing seat ring comprises an outer ring and a cross-shaped inner ring; the outer ring of the cross inner ring is connected to the inner ring of the outer ring, and four first material conveying holes are formed between the cross inner ring and the outer ring; the first material delivery orifice is in communication with the second channel. The centering of the center rod is facilitated, and the coaxial arrangement is ensured.
Preferably, the righting limiting ring is in a circular ring shape and is fixed by the limiting screw, an annular groove is circumferentially arranged on the outer ring of the righting limiting ring, a plurality of limiting blocks are circumferentially arranged on the inner ring of the righting limiting ring at intervals, a plurality of second material conveying holes are formed between the limiting blocks and the inner drill rod, and the second material conveying holes are communicated with the third channel; the inner drill rod is convenient to centralize, and meanwhile, the coaxial arrangement is guaranteed.
Preferably, the outer drill rod, the inner drill rod and the center rod are coaxially arranged.
A combined grouting drilling tool comprises a bidirectional stirring drill bit with a central shaft and a plurality of concentric three-pipe three-channel drill rod structures for the stirring pile machine; the two vertically adjacent stirring pile machines are arranged in an inserting mode through a concentric three-pipe three-channel drill rod structure and locked through the first fixing pin and the second fixing pin; the structure of the central shaft is the same as that of a concentric three-pipe three-channel drill rod for the mixing pile machine; the upper end of the central shaft is fixedly and hermetically connected with the lower end of the concentric three-pipe three-channel drill rod structure for the mixing pile machine, and three channels on the central shaft correspond to three channels on the concentric three-pipe three-channel drill rod structure for the mixing pile machine one by one; the bidirectional stirring drill bit is used for drilling and digging and stirring underground soil.
Preferably, the device also comprises three curing agent injection ports, namely a first injection port, a second injection port and a third injection port; the first jet orifice is arranged at the bottom of the bidirectional stirring drill bit and is communicated with the first channel on the central rod; the second jet orifice is arranged at the middle lower part of the central shaft and is communicated with a second channel between the central shaft and the inner drill rod; the third jet orifice is arranged on a frame of the bidirectional stirring drill bit; and is communicated with a third channel between the inner drill rod and the outer drill rod.
Drawings
Figure 1 is a cross-sectional view of a concentric three-tube, three-channel drill pipe configuration of the present invention.
Figure 2 is a cross-sectional view at a of the concentric three-tube, three-channel drill pipe configuration of figure 1 according to the present invention.
Figure 3 is a cross-sectional view at B of the concentric three-tube three-channel drill pipe configuration of figure 1 according to the present invention.
Figure 4 is a cross-sectional view at C of the concentric three-tube triple-channel drill pipe configuration of figure 1 according to the present invention.
Figure 5 is a cross-sectional view at D of the concentric three-tube, three-channel drill pipe configuration of figure 1 according to the present invention.
Figure 6 is a schematic of the construction of the concentric three-tube three-channel drill pipe structure of the present invention.
Fig. 7 is a schematic view showing the construction of the upper joints of the inner and outer drill rods according to the present invention.
Fig. 8 is a cross-sectional view of the present invention at the upper joint E of fig. 7.
Fig. 9 is a schematic view showing the construction of the lower joints of the inner and outer drill pipes according to the present invention.
Fig. 10 is a cross-sectional view of the invention at the lower joint F of fig. 9.
FIG. 11 is a cross-sectional view of a centralizing seat ring in accordance with the present invention.
Figure 12 is a plan view of a centralizing seat ring in accordance with the present invention.
Figure 13 is a cross-sectional view of a centralizing retaining ring in accordance with the invention.
Figure 14 is a plan view of a centralizing retaining ring in accordance with the invention.
Fig. 15 is a schematic view of the structure of the first fixing pin and the second fixing pin in the present invention.
Fig. 16 is a cross-sectional view of a first fixing pin and a second fixing pin in the present invention.
Fig. 17 is a schematic structural view of the combined grouting drill in the invention.
Fig. 18 is a cross-sectional view of the composite grouting tool of the present invention.
Fig. 19 is an enlarged view of the composite grouting tool G of fig. 18 according to the present invention.
FIG. 20 is a schematic view of the construction of the bi-directional stirring drill bit of the present invention.
Wherein: 1. a concentric three-tube three-channel drill rod structure; 2. a central shaft; 21. a central tube; 22. an inner tube; 23. an outer tube; 3. a bidirectional stirring drill bit; 4. installing a power head; 4.1, a power head is arranged; 5. a water faucet is mounted; 5.1, a water faucet; 6. an outer drill rod; 61. the lower part of the outer drill rod; 7. an inner drill rod; 71. the top of the inner drill rod; 72. the lower part of the inner drill rod; 73. the bottom of the inner drill rod; 8. a center pole; 81. the top of the central rod; 82. the bottom of the central rod; 9. a heavy-load clamp spring; 10-1, a centering seat ring; 10-2, righting the limiting ring; 101. a first channel; 102. a second channel; 103. a third channel; 601. a third upper joint; 602. a third rod body; 603. a third lower joint; 701. a second upper joint; 702. a second rod body; 703. a second lower joint; 704. sealing the ring groove; 705. a seal ring; 706. a pressure reduction ring groove; 707. a first pin hole; 708. a first fixing pin; 709. limiting screw holes; 710. a second pin hole; 711. a second fixing pin; 712. a seal ring; 801. a first upper joint; 802. a first rod body; 803. a first lower joint; 11. an outer ring; 12. a cross-shaped inner ring; 13. a first material delivery aperture; 14. an annular groove; 15. a limiting block; 16. a second material delivery aperture; 31. a first injection port; 32. a second injection port; 33. third injection ports; 34. an external material supply line; 35. an inner transverse stirring wing plate; 36. an outer transverse stirring wing plate; 51. a first feed port; 52. a second feed port; 53. and a third feed port.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Example 1
As shown in fig. 1 to 5, a concentric three-tube three-channel drill rod structure for a mixing pile machine comprises an outer drill rod 6, an inner drill rod 7 and a center rod 8; a first through passage 101 is arranged in the central rod 8; the inner wall of the top part 71 of the inner drill rod is connected with the outer wall of the top part 81 of the central rod through a heavy-load clamp spring 9, the inner wall of the lower part 72 of the inner drill rod is connected with the outer wall of the bottom part 82 of the central rod through a centering seat ring 10-1, the central rod 8 can be fixed in the inner drill rod 7 through the heavy-load clamp spring 9 and the centering seat ring 10-1 to form a whole, and meanwhile, the inner drill rod 7 and the central rod 8 are enabled to be coaxially arranged. The first annular gap between the central rod 8 and the inner drill rod 7 forms a second channel 102; the outer drill rod 6 is an integral body, the outer wall of the bottom 73 of the inner drill rod is rotatably connected with the inner wall of the lower part 61 of the outer drill rod through the righting limiting ring 10-2, and the inner drill rod 7 and the outer drill rod 6 can realize relative rotation; the inner drill rod 7 can be positioned in the outer drill rod 6 by the centering stop ring 10-2, and the inner drill rod 7 and the outer drill rod 6 are ensured to be coaxially arranged, so that the outer drill rod 6, the inner drill rod 7 and the center rod 8 are coaxially arranged. A second annular gap provided between the inner drill rod 7 and the outer drill rod 6 forms a third channel 103. The first channel 101, the second channel 102 and the third channel 103 can be used for the delivery of gas, water, slurry or powdered curing agent, respectively. The injection nozzle blockage of a certain conveying channel can be timely found through a concentric three-pipe three-channel drill rod structure, a constructor on the ground surface can immediately know the problem through a pressure gauge (or a buzzer) of the conveying pipeline, then the constructor can rapidly solve the related problems and ensure the engineering quality of the mixing pile, and when different types of (dry and wet) media, curing materials or high-pressure air need to be injected, the different types of (dry and wet) media, curing materials or high-pressure air can be injected through different conveying channels respectively so as to meet the requirements of different construction working conditions.
As shown in fig. 6 to 10, the central rod 8, the inner drill rod 7 and the outer drill rod 6 are each composed of respective upper, rod and lower joints, and the assembly of the central rod 8, the inner drill rod 7 and the outer drill rod 6 is facilitated by three-stage type. The top connection adopts outer hexagonal male joint structure, and the lower connection adopts interior hexagonal female joint structure. The central rod 8 comprises a first upper joint 801, a first rod body 802 and a first lower joint 803; the first upper joint 801 and the first lower joint 803 are respectively welded at the upper end and the lower end of the first rod body 802. The first upper joint 801 is externally provided with a cylindrical outer matching surface and is provided with a sealing groove, and the first lower joint 803 is provided with a cylindrical inner matching surface; the outside of the first upper joint 801 of the central rod 8 is a cylindrical matching surface and is provided with a sealing groove, the inside of the first lower joint 803 is a cylindrical matching surface, and the upper joint and the lower joint are both provided with an outer convex shoulder.
The inner drill rod 7 comprises a second upper joint 701, a second rod body 702 and a second lower joint 703; the second upper joint 701 and the second lower joint 703 are welded to the upper and lower ends of the second rod 702, respectively. The inner drill rod 7 adopts an outer flat structure, that is, the maximum outer diameters of the second upper joint 701 and the second lower joint 703 are consistent with the outer diameter of the second rod body 702. The inner parts of the second upper joint 701 and the second lower joint 703 are both inwards convex to form an inner shoulder with the second rod body 702; the outer wall of the second upper joint 701 is provided with a matching surface of an outer hexagonal cylindrical torque transmission and a guiding cylindrical matching surface, the hexagonal cylindrical surface part is symmetrically provided with a semicircular first pin hole 707 for connection, the cylindrical surface part is also provided with an annular sealing groove, the second lower joint 703 is internally provided with an inner hexagonal cylindrical torque transmission surface and an inner cylindrical torque transmission front surface, and the hexagonal cylindrical surface part is also provided with a first pin hole 707; a clamping groove of a heavy-duty clamp spring 9 is arranged in the second upper joint 701, and a centering seat ring 10-1 is arranged at the joint of the inner drill rod 7 and the second lower joint 703. The heavy-duty clamp spring 9 is positioned between the bottom of the first upper connector 801 and the top of the second upper connector 701; centralizing seat ring 10-1 is located between the bottom of first lower joint 803 and the top of second lower joint 703. The central rod 8 is fixed in the inner drill rod 7 by means of a heavy-duty clamp spring 9 and a centering seat ring 10-1, the heavy-duty clamp spring 9 is installed in an inner clamping groove of a second upper joint 701 of the inner drill rod 7, and the centering seat ring 10-1 is installed at the upper part of a second lower joint 703 of the inner drill rod 7.
The outer drill rod 6 comprises a third upper joint 601, a third rod 602 and a third lower joint 603; the third upper joint 601 and the third lower joint 603 are respectively welded at the upper end and the lower end of the third rod body 602; the centralizing stop collar 10-2 is located between the lower portion of the second lower sub 703 and the upper portion of the third lower sub 603. The outer drill rod 6 adopts an inner flat structure, namely the inner diameters of a third upper joint 601, a third rod body 602 and a third lower joint 603 are consistent, the outer parts of the third upper joint 601 and the third lower joint 603 are respectively provided with an outer convex shoulder, reinforcing ribs are respectively arranged between the third upper joint 601, the third lower joint 603 and the third rod body 602, the third upper joint 601 is provided with an outer hexagonal cylindrical torque transmission matching surface and a guiding cylindrical matching surface, the third lower joint 603 is provided with an inner hexagonal cylindrical torque transmission matching surface and an inner cylindrical guiding matching surface, the position of a hexagonal cylindrical surface is further symmetrically provided with a second fixing pin 711 for connection, and the position of the cylindrical surface is provided with an annular sealing groove; a righting limit ring 10-2 is arranged at the shoulder position in the third lower joint 603, and the righting limit ring 10-2 is locked by a limit screw.
As shown in fig. 7 and 8, the structure of the second upper joint 701 is the same as that of the third upper joint 601, the outer ring of the second upper joint 701 is provided with two sealing ring grooves 704, and the two sealing ring grooves 704 are respectively located at the upper part and the lower part of the second upper joint 701; an O-shaped sealing ring 705 is arranged on each sealing ring groove 704; the sealing performance at the time of connection is improved by the sealing ring 705. The outer ring of the second upper joint 701 is provided with a pressure reduction ring groove 706; a relief ring groove 706 is located between two seal ring grooves 704. As shown in fig. 15 and 16, the outer ring of the second upper joint 701 is further provided with a first pin hole 707; a first fixing pin 708 is provided in the first pin hole 707. Both ends of the first fixing pin 708 are provided with sealing rings 712, by which sealing effects at both ends of the first fixing pin 708 can be improved.
As shown in fig. 9 and 10, the structure of the second lower joint 703 is the same as that of the third lower joint 603, and a limit screw hole 709 is formed in an inner ring of the second lower joint 703; a limit screw is arranged in the limit screw hole 709, and the inner end of the limit screw is matched with the righting limit ring 10-2, so that the righting limit ring 10-2 is fixed. Referring to fig. 15 and 16, the inner ring of the second lower joint 703 is further provided with a second pin hole 710; a second fixing pin 711 is arranged in the second pin hole 710; the second fixing pin 711 is provided at both ends thereof with sealing rings 712 to improve sealing effect at the joint.
As shown in fig. 11 and 12, the centralizing seat ring 10-1 includes an outer ring 11 and a cross-shaped inner ring 12; the outer ring of the cross-shaped inner ring 12 is connected to the inner ring of the outer ring 11, the inner ring of the cross-shaped inner ring 12 is matched with the outer ring of the central rod 8, and four first material conveying holes 13 are formed between the cross-shaped inner ring 12 and the outer ring 11; the first material feed hole 13 communicates with the second channel 102, and the outer ring of the outer ring 11 cooperates with the inner ring of the inner drill rod, so as to center the central rod 8 and ensure coaxial arrangement.
As shown in fig. 13 and 14, the centering limit ring 10-2 is annular, an outer ring of the centering limit ring 10-2 is matched with an inner ring of the outer drill rod 6, an annular groove 14 is circumferentially arranged on the outer ring of the centering limit ring 10-2, a limit screw is clamped into the annular groove 14 to fix the centering limit ring 10-2, a plurality of limit blocks 15 are circumferentially arranged on the inner ring of the centering limit ring 10-2 at intervals, a plurality of second material conveying holes 16 are formed between the limit blocks 15 and the inner drill rod 7, and the second material conveying holes 16 are communicated with the third channel 103. The limiting block 15 is matched with the outer wall of the second lower joint 703 for limiting, so that the inner drill rod 7 is conveniently righted and is coaxially arranged.
The concentric three-pipe three-channel drill rod structure for the mixing pile machine can timely find that a jet orifice of a certain conveying channel is blocked, constructors on the ground surface can immediately know the problem through a pressure gauge (or a buzzer) of the conveying pipeline, further the constructors can rapidly solve the related problems, the engineering quality of the mixing pile is guaranteed, and when different types of (dry and wet) media, curing materials or high-pressure air need to be injected, the different types of (dry and wet) media, curing materials or high-pressure air need to be injected through different conveying channels to meet the requirements of different construction working conditions. Meanwhile, the concentric three-pipe three-channel drill rod structure can also be applied to a bidirectional stirring technology, so that the construction quality of the stirring pile is greatly improved, and particularly, the stirring uniformity and the solidified soil strength are greatly improved.
Example 2
As shown in fig. 17 to 20, a combination grouting drill comprises a bidirectional stirring drill bit 3 with a central shaft 2 and a plurality of concentric three-tube three-channel drill rod structures 1 of embodiment 1; the two concentric three-pipe three-channel drill pipe structures 1 which are adjacent up and down are inserted and arranged and locked by a first fixing pin 708 and a second fixing pin 711; the central rod 8 is a plug-in structure matched with a cylindrical surface, and the inner drill rod 7 and the outer drill rod 6 are plug-in structures matched with a hexagonal cylindrical surface. The top of a central rod 8 on one concentric three-tube three-channel drill rod structure 1 is inserted into the bottom of an outer drill rod 6 of the other concentric three-tube three-channel drill rod structure 1, the upper and lower central rods 8, the upper and lower inner drill rods 7 and the upper and lower outer drill rods 6 are aligned one by one, the three channels are communicated one by one, the inner and outer sides transmit torque, and the first fixing pin 708 and the second fixing pin 711 bear axial force. The structure of the central shaft 2 is the same as that of the concentric three-pipe three-channel drill rod 1; the central shaft 2 comprises a central tube 21, an inner tube 22 and an outer tube 23; the second lower joint 703 and the inner hexagonal female joint structure on the third lower joint 603 of the concentric three-tube three-channel drill rod structure 1 are fixedly and hermetically connected with the outer hexagonal male joint structures on the inner tube 22 and the outer tube 23 on the central shaft 2 in a quick insertion manner, and the central rod 8 is hermetically inserted into the central tube 21. The bidirectional stirring drill bit 3 is used for drilling and stirring underground soil.
As shown in fig. 20, three curing agent ejection ports, a first ejection port 31, a second ejection port 32, and a third ejection port 33; the first injection port 31 is arranged at the bottom of the bidirectional stirring drill bit 3 and is communicated with the first channel 101 of the central rod 8; the second jet port 32 is arranged on the inner transverse stirring wing plate 35 at the middle lower part of the central shaft 2 and is communicated with a second channel 102 between the central shaft 8 and the inner drill rod 7; the third injection port 33 is arranged inside a vertical outer edge plate of an upper frame of the bidirectional stirring drill bit 3 and communicated with the third passage 103 between the inner drill rod 7 and the outer drill rod 6.
As shown in fig. 17 to 20, an assembling process of a combined grouting drill includes the following steps:
1) a first channel 101 and a second channel 102 of the uppermost section of the concentric three-pipe three-channel drill rod structure 1 are respectively fixedly and hermetically connected with a first feed port 51 and a second feed port 52 of a faucet 5 on an upper power head 4; the third channel 103 is fixedly and hermetically connected with a third feeding hole 53 of the water tap 5.1 above the lower power head 4.1; and three external material supply pipes 34 are respectively fixedly and hermetically connected with the three feed ports.
2) And each concentric three-pipe three-channel drill rod structure 1 is rapidly fixed and hermetically connected with the outer hexagonal male joint structures on the upper parts of other concentric three-pipe three-channel drill rod structures 1 one by one through the inner hexagonal female joint structure on the lower part.
3) The outer hexagonal male joint structure on the upper part of the central shaft 2 of the bidirectional stirring drill bit 3 is fixedly and hermetically connected with the inner hexagonal female joint structure on the lower part of the concentric three-pipe three-channel drill rod structure 1 on the lowest section, and the assembly of the concentric three-pipe three-channel combined grouting drilling tool is completed.
4) During assembly, the first feed port 51 of the upper water faucet 5, the first channel 101 of the central rod 8, the channel of the central tube 21 of the central shaft 2 and the first jet port 31 of the bidirectional stirring drill bit 3 form a complete first injection channel; the second feed port 52 of the upper water faucet 5, the second channel 102 between the inner drill rod 7 and the central rod 8, the channel between the inner pipe 22 and the central pipe 21 of the central shaft 2 and the second jet port 32 of the bidirectional stirring drill bit 3 form a complete second injection channel; the third feed opening 53 of the lower tap 5.1, the third passage 103 between the outer drill rod 6 and the inner drill rod 7, the passage between the outer tube 23 and the inner tube 22 of the central shaft 2 and the third jet 33 of the bidirectional stirring drill bit 3 form a complete third injection passage.
In summary, the inner drill rod 7 and the outer drill rod 6 of the combined grouting drill are independent from each other, the upper power head 4 drives the inner drill rod 7 and the inner transverse stirring wing plate 35 to rotate, and the lower power head 4.1 drives the outer drill rod 6 and the outer transverse stirring wing plate 36 to rotate, so that bidirectional rotary stirring operation of the inner drill rod 7 and the outer drill rod 6 can be realized. According to construction requirements, the central channel can be independently used for grouting, the double-channel grouting can also be used, and the three channels can be simultaneously used for grouting operation, so that the working efficiency of the large-diameter and large-depth stirring pile can be improved, and the uniformity and the construction quality of the pile can be guaranteed.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present invention.
Claims (10)
1. A concentric three-pipe three-channel drill rod structure for a mixing pile machine is characterized by comprising an outer drill rod (6), an inner drill rod (7) and a central rod (8); a first through channel (101) is arranged in the central rod (8); the inner wall of the top (71) of the inner drill rod is connected with the outer wall of the top (81) of the central rod through a heavy-duty clamp spring (9), the inner wall of the lower part (72) of the inner drill rod is connected with the outer wall of the bottom (82) of the central rod through a centering seat ring (10-1), and a first annular gap between the central rod (8) and the inner drill rod (7) forms a second channel (102); the outer wall of the bottom (73) of the inner drill rod is rotatably connected with the inner wall of the lower part (61) of the outer drill rod through a righting limiting ring (10-2), and the inner drill rod (7) and the outer drill rod (6) can realize relative rotation; a second annular gap between the inner drill rod (7) and the outer drill rod (6) forms a third channel (103).
2. The concentric three-tube three-channel drill rod structure for mixer-pilers according to claim 1, characterized in that the central rod (8) comprises a first upper joint (801), a first rod body (802) and a first lower joint (803); the first upper joint (801) and the first lower joint (803) are fixedly connected to the upper end and the lower end of the first rod body (802) respectively.
3. The concentric three-pipe three-channel drill rod structure for the mixing pile machine as recited in claim 2, wherein the inner drill rod (7) adopts an outer flat structure, and the inner drill rod (7) comprises a second upper joint (701), a second rod body (702) and a second lower joint (703); the second upper joint (701) and the second lower joint (703) are respectively and fixedly connected to the upper end and the lower end of the second rod body (702); the heavy-duty clamp spring (9) is positioned between the bottom of the first upper connector (801) and the top of the second upper connector (701); the centralizing seat ring (10-1) is located between the bottom of the first lower joint (803) and the top of the second lower joint (703).
4. The concentric three-pipe three-channel drill rod structure for the mixing pile machine as recited in claim 3, wherein the outer drill rod (6) adopts an inner flat structure, and the outer drill rod (6) comprises a third upper joint (601), a third rod body (602) and a third lower joint (603); the third upper joint (601) and the third lower joint (603) are respectively and fixedly connected to the upper end and the lower end of the third rod body (602); the centralizing limiting ring (10-2) is positioned between the lower part of the second lower joint (703) and the upper part of the third lower joint (603).
5. The concentric three-pipe three-channel drill rod structure for the mixing pile machine is characterized in that the structure of the second upper joint (701) is the same as that of the third upper joint (601), the outer ring of the second upper joint (701) is provided with a plurality of sealing ring grooves (704), and each sealing ring groove (704) is provided with a sealing ring (705); the outer ring of the second upper joint (701) is provided with a pressure reduction ring groove (706); a first pin hole (707) is further formed in the outer ring of the second upper joint (701); a first fixing pin (708) is arranged in the first pin hole (707); sealing rings (712) are arranged at two ends of the first fixing pin (708); the structure of the second lower joint (703) is the same as that of the third lower joint (603), a limit screw hole (709) is formed in the inner ring of the third lower joint (603), and a limit screw is arranged in the limit screw hole (709); the inner ring of the third lower joint (603) is also provided with a second pin hole (710); a second fixing pin (711) is arranged in the second pin hole (710); the sealing rings (712) are provided at both ends of the second fixing pin (711).
6. The concentric three-pipe three-channel drill rod structure for the mixing and piling machine according to claim 1, wherein the centering seat ring (10-1) comprises an outer ring (11) and a cross-shaped inner ring (12); the outer ring of the cross-shaped inner ring (12) is connected to the inner ring of the outer ring (11), and four first material conveying holes (13) are formed between the cross-shaped inner ring (12) and the outer ring (11); the first material delivery orifice (13) communicates with the second channel (102).
7. The concentric three-pipe three-channel drill rod structure for the mixing pile machine is characterized in that the righting limiting ring (10-2) is annular, the righting limiting ring (10-2) is fixed through the limiting screw, an annular groove (14) is formed in the circumferential direction of the outer ring of the righting limiting ring (10-2), a plurality of limiting blocks (15) are arranged in the circumferential direction of the inner ring of the righting limiting ring (10-2) at intervals, a plurality of second material conveying holes (16) are formed between the limiting blocks (15) and the inner drill rod (7), and the second material conveying holes (16) are communicated with the third channel (103).
8. The concentric three-pipe three-channel drill rod structure for the mixing pile machine according to claim 1, characterized in that the outer drill rod (6), the inner drill rod (7) and the center rod (8) are coaxially arranged.
9. A combined grouting drill, characterized by comprising a bidirectional stirring drill bit (3) with a central shaft (2) and a plurality of concentric three-pipe three-channel drill rod structures for the stirring pile machine according to any one of claims 1 to 8; the two vertically adjacent mixing pile machines are arranged in an inserted mode through a concentric three-pipe three-channel drill rod structure and locked through a first fixing pin (708) and a second fixing pin (711); the structure of the central shaft (2) is the same as that of a concentric three-pipe three-channel drill rod for the mixing pile machine; the upper end of the central shaft (2) is fixedly and hermetically connected with the lower end of the concentric three-pipe three-channel drill rod structure for the mixing pile machine, and three channels on the central shaft (2) correspond to three channels on the concentric three-pipe three-channel drill rod structure for the mixing pile machine one by one; the bidirectional stirring drill bit (3) can drill and stir underground soil by using a double-power-head bidirectional stirring technology.
10. The combination grouting drill according to claim 9, further comprising three curing agent injection ports, a first injection port (31), a second injection port (32) and a third injection port (33); the first injection port (31) is arranged at the bottom of the bidirectional stirring drill bit (3) and is communicated with the first channel (101) on the central rod (8); the second jet orifice (32) is arranged at the middle lower part of the central shaft (2) and is communicated with a second channel (102) between the central shaft (8) and the inner drill rod (7); the third jet orifice (33) is arranged on a frame of the bidirectional stirring drill bit (3); and is communicated with a third channel (103) between the inner drill rod (7) and the outer drill rod (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210127226.2A CN114319334A (en) | 2022-02-11 | 2022-02-11 | Concentric three-pipe three-channel drill rod structure for mixing pile machine and combined grouting drilling tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210127226.2A CN114319334A (en) | 2022-02-11 | 2022-02-11 | Concentric three-pipe three-channel drill rod structure for mixing pile machine and combined grouting drilling tool |
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| CN114319334A true CN114319334A (en) | 2022-04-12 |
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|---|---|---|---|
| CN202210127226.2A Pending CN114319334A (en) | 2022-02-11 | 2022-02-11 | Concentric three-pipe three-channel drill rod structure for mixing pile machine and combined grouting drilling tool |
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| CN (1) | CN114319334A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508091A (en) * | 2022-02-11 | 2022-05-17 | 浙江坤德创新岩土工程有限公司 | Intelligent drilling machine equipment with bidirectional rotary stirring mechanism and construction method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2135597Y (en) * | 1992-08-20 | 1993-06-09 | 四川省水利电力工程局地基工程处 | Three-layer tube for high-pressure jet grouting machine |
| CN103074887A (en) * | 2013-01-30 | 2013-05-01 | 安徽水利开发股份有限公司 | Drilling/spraying integrated foundation treatment method and special drilling rig component |
| CN203569563U (en) * | 2013-11-18 | 2014-04-30 | 高伯明 | Drilling tool of mixing pile machine |
| CN205422579U (en) * | 2016-03-15 | 2016-08-03 | 陕西西探地质装备有限公司 | Triple pipe bit poles |
| KR101919280B1 (en) * | 2018-05-25 | 2019-02-08 | 박수근 | Grouting device for both injection and high-pressured jet |
| CN113250620A (en) * | 2021-06-22 | 2021-08-13 | 无锡市安曼工程机械有限公司 | Drilling tool connecting sleeve and triple jet drilling tool |
| CN217378861U (en) * | 2022-02-11 | 2022-09-06 | 浙江坤德创新岩土工程有限公司 | Concentric three-pipe three-channel drill rod structure for mixing pile machine and combined grouting drilling tool |
-
2022
- 2022-02-11 CN CN202210127226.2A patent/CN114319334A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2135597Y (en) * | 1992-08-20 | 1993-06-09 | 四川省水利电力工程局地基工程处 | Three-layer tube for high-pressure jet grouting machine |
| CN103074887A (en) * | 2013-01-30 | 2013-05-01 | 安徽水利开发股份有限公司 | Drilling/spraying integrated foundation treatment method and special drilling rig component |
| CN203569563U (en) * | 2013-11-18 | 2014-04-30 | 高伯明 | Drilling tool of mixing pile machine |
| CN205422579U (en) * | 2016-03-15 | 2016-08-03 | 陕西西探地质装备有限公司 | Triple pipe bit poles |
| KR101919280B1 (en) * | 2018-05-25 | 2019-02-08 | 박수근 | Grouting device for both injection and high-pressured jet |
| CN113250620A (en) * | 2021-06-22 | 2021-08-13 | 无锡市安曼工程机械有限公司 | Drilling tool connecting sleeve and triple jet drilling tool |
| CN217378861U (en) * | 2022-02-11 | 2022-09-06 | 浙江坤德创新岩土工程有限公司 | Concentric three-pipe three-channel drill rod structure for mixing pile machine and combined grouting drilling tool |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508091A (en) * | 2022-02-11 | 2022-05-17 | 浙江坤德创新岩土工程有限公司 | Intelligent drilling machine equipment with bidirectional rotary stirring mechanism and construction method |
| CN114508091B (en) * | 2022-02-11 | 2024-01-05 | 浙江坤德创新岩土工程有限公司 | Intelligent drilling machine equipment with bidirectional rotary stirring mechanism and construction method |
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