CN115142406A - Bidirectional cement mixing pile machine - Google Patents
Bidirectional cement mixing pile machine Download PDFInfo
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- CN115142406A CN115142406A CN202210866824.1A CN202210866824A CN115142406A CN 115142406 A CN115142406 A CN 115142406A CN 202210866824 A CN202210866824 A CN 202210866824A CN 115142406 A CN115142406 A CN 115142406A
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- mixing pile
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- 239000004568 cement Substances 0.000 title claims abstract description 64
- 230000002457 bidirectional effect Effects 0.000 title claims description 22
- 238000003756 stirring Methods 0.000 claims abstract description 137
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000003921 oil Substances 0.000 claims description 43
- 238000005553 drilling Methods 0.000 claims description 41
- 239000011440 grout Substances 0.000 claims description 33
- 238000007789 sealing Methods 0.000 claims description 24
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000001050 lubricating effect Effects 0.000 claims description 6
- 239000010687 lubricating oil Substances 0.000 claims description 5
- 239000002689 soil Substances 0.000 description 50
- 239000002002 slurry Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 14
- 238000005507 spraying Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241001075561 Fioria Species 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model relates to a two-way cement mixing pile machine, which is applied to the technical field of mixing pile machines and comprises a mixing pile machine body, an outer drill rod, an inner drill rod, a drill bit and a driving device for driving the inner drill rod and the outer drill rod to rotate in opposite directions, wherein the driving device is arranged on the mixing pile machine body; the side wall of the inner drill rod is provided with a plurality of inner main stirring rods, the side wall of the outer drill rod is rotatably connected with a plurality of stirring rods, the stirring rods are provided with spiral fan blades, and the outer drill rod is provided with a plurality of outer driving mechanisms for driving the stirring rods to rotate. The method has the advantages of improving the uniformity of cement paste distribution in the pile body and improving pile forming quality.
Description
Technical Field
The application relates to the field of mixing pile machine technology, in particular to a bidirectional cement mixing pile machine.
Background
The cement-soil mixing method is a method for reinforcing saturated cohesive soil foundation, and is characterized by that it uses cement or lime as solidifying agent, and utilizes a cement-soil mixing pile machine to forcedly mix the soft soil and solidifying agent (slurry or powder) in the deep position of foundation, and utilizes a series of physical and chemical reactions produced between solidifying agent and foundation soil to make the foundation soil be hardened into the cement soil with integrity, water stability and a certain strength so as to raise foundation strength and increase deformation modulus.
Chinese patent publication No. CN110644468A discloses a nail-shaped bidirectional cement mixing pile machine with a blade fault detection system, which comprises a mixing pile machine body, a mixing power box, an outer drill rod, an inner drill rod, a drill bit, a plurality of foldable blades and a blade fault detection system, wherein the inner drill rod is nested in the outer drill rod, and the top and the bottom of the inner drill rod are both longer than the outer drill rod; a grouting channel is arranged in the inner drill rod, the grout supply pipe is communicated with the top of the inner drill rod, the drill bit is arranged at the bottom of the inner drill rod, and a grout outlet is formed in the inner drill rod; and one part of the foldable blades is arranged on the side wall of the outer drill rod, and the other part of the foldable blades is arranged on the side wall of the bottom of the inner drill rod.
The stirring power box is including locating outer drilling rod stirring power box and interior drilling rod stirring power box on the elevating platform of frame, the power take off end of outer drilling rod stirring power box and interior drilling rod stirring power box all is connected with the transmission shaft that has the flange, the transmission shaft end all is connected with transmission system, be connected with outer drilling rod by outer drilling rod stirring power box driven transmission system, be connected including on the part that drilling rod top exceeds outer drilling rod by interior drilling rod stirring power box driven transmission system, through interior drilling rod stirring power box and the interior drilling rod of outer drilling rod stirring power box drive and outer drilling rod towards opposite direction rotation.
Aiming at the related technologies, the inventor thinks that the bidirectional cement soil mixing pile machine only depends on the axial rotation of the plurality of folding blades around the inner drill rod to mix the cement slurry and the soft soil foundation, the mixing effect is poor, the cement slurry is easily distributed unevenly in the pile body, and the pile forming quality is influenced.
Disclosure of Invention
In order to solve the problems that a bidirectional cement soil mixing pile machine is poor in mixing effect of cement paste and soft soil foundation, the cement paste is easily distributed unevenly in a pile body, and pile forming quality is affected, the application provides the bidirectional cement soil mixing pile machine.
The application provides a two-way cement mixing stake machine adopts following technical scheme:
a bidirectional cement mixing pile machine comprises a mixing pile machine body, an outer drill rod, an inner drill rod, a drill bit and a driving device for driving the inner drill rod and the outer drill rod to rotate in opposite directions, wherein the driving device is arranged on the mixing pile machine body;
the side wall of the inner drill rod is provided with a plurality of inner main stirring rods, the side wall of the outer drill rod is rotatably connected with a plurality of stirring rods, the stirring rods are provided with spiral fan blades, and the outer drill rod is provided with a plurality of outer driving mechanisms for driving the stirring rods to rotate.
Through adopting above-mentioned technical scheme, drilling rod and outer drilling rod rotate towards opposite direction in the drive through drive arrangement drive, drive interior main stirring rod and puddler and rotate towards opposite direction to can stir grout and soft soil foundation, make grout and soft soil foundation mix, can also reduce the possibility of bleeding simultaneously.
The stirring rod is driven to rotate through the outer driving mechanism, the stirring rod rotates to drive the spiral fan blades to rotate to stir cement paste and the soft soil foundation, the contact area of the stirring rod with the cement paste and the soft soil foundation is increased through the spiral fan blades, the stirring effect can be improved, the axial rotation of the inner drill rod is only depended on the stirring rod and the inner main stirring rod, the cement paste and the soft soil foundation are more uniform in mixing through the spiral fan blades, and the pile forming quality can be improved.
Optionally, the outer driving mechanism comprises a driving sprocket, a driven sprocket, a chain and an outer driving motor, a gap is reserved between the outer wall of the inner drill rod and the inner wall of the outer drill rod, and a sealing mechanism for sealing the gap between the inner drill rod and the outer drill rod is arranged on the inner drill rod;
the driving chain wheel, the driven chain wheel and the chain are all positioned between the inner drill rod and the outer drill rod, an installation plate is arranged on the outer drill rod, the outer driving motor is installed on the installation plate, an output shaft of the outer driving motor extends to a position between the outer drill rod and the inner drill rod, and the driving chain wheel is coaxially connected to the output shaft of the outer driving motor;
the driven chain wheel is coaxially connected to the stirring rod, and the chain is wound on the driving chain wheel and the driven chain wheel.
Through adopting above-mentioned technical scheme, rotate through outer driving motor drive sprocket, drive sprocket rotates and drives driven sprocket through the chain and rotates to driven sprocket can drive the puddler and rotate, and then can drive helical fan leaf and rotate and stir grout and soft soil foundation, make grout and soft soil foundation mix more evenly.
Optionally, the sealing mechanism includes a sealing ring and a plurality of balls, the sealing ring is sleeved on the inner drill rod, a rotating groove for the outer drill rod to be placed in a matching manner is formed in the sealing ring, the balls are rotatably arranged in the rotating groove, and the outer drill rod is arranged in the rotating groove and attached to the balls.
By adopting the technical scheme, the sealing ring can reduce the possibility that the soil body enters between the inner drill rod and the outer drill rod to influence the rotation of the driven sprocket in the descending process of the outer drill rod and the inner drill rod. The ball reduces the contact area between the bottom end of the outer drill rod and the rotating groove, so that the friction force applied to the outer drill rod in the rotating process can be reduced, and the driving force of the driving device can be reduced.
Optionally, the external driving mechanism further comprises a lubricating assembly, the lubricating assembly comprises an oil storage bag, an oil guide pipe and an oil guide nozzle, and lubricating oil is arranged in the oil storage bag;
be equipped with the installing frame on the outer drilling rod, the oil storage bag is located in the installing frame, oil pipe's one end with the oil storage bag intercommunication, oil pipe's the other end extends to interior drilling rod with between the outer drilling rod, it is located to lead the glib talker the top of drive sprocket.
Through adopting above-mentioned technical scheme, after outer actuating mechanism operation a period, the staff promotes the oil storage bag, makes lubricating oil through lead oil pipe and lead on the oil nozzle drips the chain, lubricate and maintains the chain to can reduce the friction between chain and drive sprocket and the driven sprocket, reduce the noise in the operation, can also reduce the cracked possibility of chain, prolong the life of chain.
Optionally, a cavity is arranged in the inner main stirring rod and is communicated with the grouting channel, and a plurality of guniting holes are formed in the inner main stirring rod.
By adopting the technical scheme, the inner main stirring rod is positioned at different horizontal heights, so that the cement paste is sprayed out from the plurality of grout spraying holes at different horizontal heights, the cement paste is more easily and uniformly mixed with the soft soil foundation, and the cement paste is more uniformly distributed in a pile body of the pile, so that the pile forming quality is improved.
Optionally, a baffle is hinged to the guniting hole, a torsion spring is sleeved on a hinge shaft of the baffle, one end of the torsion spring is connected with the inner main stirring rod, and the other end of the torsion spring is connected with the baffle; the inner wall of the inner main stirring rod is provided with a limiting block, and the baffle is tightly abutted to the limiting block.
By adopting the technical scheme, the baffle is used for shielding the grout spraying hole so as to reduce the possibility that soil body enters the cavity from the grout spraying hole when the inner drill rod drives the inner main stirring rod to rotate, thereby enabling cement paste to more smoothly enter the cavity and be sprayed out from the grout spraying hole.
The baffle supports tightly on the stopper under the torsion effect of torsional spring, makes the baffle can seal the whitewashing hole more steadily.
Optionally, the inner main stirring rod is rotatably connected to the inner drill rod, a plurality of auxiliary stirring mechanisms are arranged on the inner drill rod, each auxiliary stirring mechanism comprises a plurality of inner auxiliary stirring rods arranged on the inner main stirring rod and an auxiliary driving assembly used for driving the inner main stirring rods to rotate, one end of the auxiliary driving assembly is arranged on the inner drill rod, and the other end of the auxiliary driving assembly is pushed against the inner auxiliary stirring rods.
Through adopting above-mentioned technical scheme, can increase the area of contact of interior main stirring rod and soft soil foundation and grout through interior supplementary stirring rod to can improve the stirring effect to grout and soft soil foundation. In addition, the auxiliary driving component drives the inner auxiliary stirring rod to axially rotate around the inner main stirring rod, so that the stirring effect on cement paste and soft soil foundation can be further improved, the uniformity of the cement paste in the pile forming process can be further improved, and the pile forming quality is improved.
Optionally, the auxiliary driving assembly includes interior driving motor, protection casing, drive shaft and a plurality of actuating lever, the protection casing is located on the inner wall of interior drilling rod, interior driving motor installs in the protection casing, the one end of drive shaft runs through interior drilling rod and with interior driving motor's output shaft, and is a plurality of the actuating lever is located in the drive shaft, the actuating lever supports and pushes away interior auxiliary stirring rod.
Through adopting above-mentioned technical scheme, make the drive shaft rotate through interior driving motor, the drive shaft drives the actuating lever and rotates, because interior main stirring rod rotates to be connected including on the drilling rod, the actuating lever supports to push away in the auxiliary stirring rod makes in the auxiliary stirring rod can assist the axial rotation of stirring rod in can winding to can improve the stirring effect to grout and soft soil foundation, and then make the degree of consistency of grout in the stake can further improve.
Optionally, the top wall of the protective cover is arranged to be inclined downwards away from one end of the inner drill rod.
Through adopting above-mentioned technical scheme, the one end that interior drilling rod was kept away from to the roof of protection casing inclines down to set up, makes the grout can be more smooth and easy fall down from the roof of protection casing, also can reduce the impact of grout to the antiskid cover simultaneously, prolongs the life of protection casing.
Optionally, the inner drill rod includes a first inner drill rod, a threaded rod and a second inner drill rod, the threaded rod is disposed on the second inner drill rod, the threaded rod is connected to the first inner drill rod in a threaded manner, and the first inner drill rod is connected to the driving device;
the drill bit is connected in the second in the drilling rod keep away from the one end of threaded rod, the threaded rod is located the protection casing with interior main stirring rod between.
Through adopting above-mentioned technical scheme, can dismantle the connection through threaded connection realization threaded rod and first interior drilling rod to the staff of being convenient for changes the protection casing and overhauls internal driving motor.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the stirring rod is driven to rotate by the external driving mechanism, the stirring rod rotates to drive the spiral fan blades to rotate to stir the cement paste and the soft soil foundation, and the contact area between the stirring rod and the cement paste and the soft soil foundation is increased by the spiral fan blades, so that the stirring effect can be improved, the cement paste and the soft soil foundation are mixed more uniformly, and the pile forming quality can be improved;
2. because the inner main stirring rod is positioned at different horizontal heights, the cement paste is sprayed out from a plurality of cement spraying holes with different horizontal heights, so that the cement paste is easier to be uniformly mixed with the soft soil foundation, and the cement paste is more uniformly distributed in the pile body of the pile to improve the pile forming quality;
3. threaded rod and the first interior drilling rod can be dismantled through threaded connection and be connected to the staff of being convenient for changes the protection casing and overhauls internal driving motor.
Drawings
Fig. 1 is a schematic view of a bidirectional cement mixing pile machine in an embodiment of the application.
FIG. 2 is a schematic view of the inner and outer drill rods in an embodiment of the present application.
Fig. 3 is a sectional view of an external drive mechanism in an embodiment of the present application.
Fig. 4 is a sectional view of an auxiliary stirring mechanism in the embodiment of the present application.
Fig. 5 is an enlarged view of a portion a in fig. 4.
Fig. 6 is a schematic diagram for showing an external drive mechanism in an embodiment of the present application.
Fig. 7 is an enlarged view of a portion B in fig. 3.
Fig. 8 is an enlarged view of a portion C in fig. 3.
Reference numerals: 1. a mixing pile machine body; 2. an outer drill rod; 3. an inner drill rod; 31. grouting channels; 32. a first inner drill rod; 33. a threaded rod; 34. a second inner drill rod; 341. a pulp outlet; 4. a drill bit; 5. a drive device; 6. an elevator; 7. a stirring rod; 8. a helical fan blade; 9. an external drive mechanism; 91. a drive sprocket; 92. a driven sprocket; 93. a chain; 94. an external drive motor; 95. a lubrication assembly; 951. an oil reservoir bladder; 952. an oil guide pipe; 953. an oil guide nozzle; 954. supplementing an oil pipe; 955. a sealing cap; 956. installing a frame; 10. mounting a plate; 11. a sealing mechanism; 111. a seal ring; 1111. a rotating groove; 112. a ball bearing; 12. an inner main stirring rod; 121. a cavity; 122. a guniting hole; 13. a baffle plate; 14. a torsion spring; 15. a limiting block; 16. an auxiliary stirring mechanism; 161. an inner auxiliary stirring rod; 162. an auxiliary drive assembly; 1621. an internal drive motor; 1622. a protective cover; 1623. a drive shaft; 1624. a drive rod.
Detailed Description
The present application is described in further detail below with reference to figures 1-8.
The embodiment of the application discloses a bidirectional cement mixing pile machine. Referring to fig. 1 and 2, the bidirectional cement mixing pile machine includes a mixing pile machine body 1, an outer drill rod 2, an inner drill rod 3, a drill 4, a driving device 5, a plurality of mixing rods 7, a spiral fan blade 8, an outer driving mechanism 9, an inner main mixing rod 12 and an auxiliary mixing mechanism 16.
Referring to fig. 1 and 3, the outer drill rod 2 is sleeved on the inner drill rod 3, a gap is reserved between the outer drill rod 2 and the inner drill rod 3, and a sealing mechanism 11 for sealing the gap between the inner drill rod 3 and the outer drill rod 2 is fixed on the inner drill rod 3, so that the possibility that soil and cement slurry enter between the inner drill rod 3 and the outer drill rod 2 is reduced. The inner drill rod 3 and the outer drill rod 2 are both connected to a driving device 5, the driving device 5 is mounted on an elevator 6 of the mixing pile machine body 1 and is used for driving the inner drill rod 3 and the outer drill rod 2 to rotate in opposite directions, and since the driving device 5 (which is obtained from the structure for driving the inner drill rod 3 and the outer drill rod 2 to rotate in opposite directions in the related art) and the structure of the mixing pile machine body 1 in the present application are described in detail in the related art, namely the related art, the present application is not described in detail in the present embodiment.
Referring to fig. 4 and 5, the inner drill rod 3 comprises a first inner drill rod 32, a threaded rod 33 and a second inner drill rod 34, the first inner drill rod 32 is connected to the driving device 5, the threaded rod 33 is coaxially connected to one end of the second inner drill rod 34, the threaded rod 33 is in threaded connection with the first inner drill rod 32, the threaded direction of the threaded rod 33 is the same as the rotating direction of the first inner drill rod 32, the drill bit 4 is coaxially connected to the bottom of the second inner drill rod 34, and when the driving device 5 drives the inner drill rod 3 to rotate, the drill bit 4 drills soft soil foundations. The inner main stirring rods 12 are rotatably connected to the side wall of the inner drill rod 3, the inner main stirring rods 12 are uniformly distributed along the outer periphery of the inner drill rod 3, in the embodiment, the number of the inner main stirring rods 12 arranged on the first inner drill rod 32 and the second inner drill rod 34 is three, and the inner main stirring rods 12 arranged on the second inner drill rod 34 are opposite to the lower portions of the inner main stirring rods 12 arranged on the first inner drill rod 32 one by one. In the process that the inner drill rod 3 drives the inner main stirring rod 12 to rotate, stirring vortexes are formed between the cement paste and the soft soil foundation, and therefore the mixing effect of the cement paste and the soft soil foundation is improved.
Referring to fig. 4 and 5, a grouting channel 31 is arranged inside the inner drill rod 3, a grout outlet 341 communicated with the grouting channel 31 is arranged between the inner main stirring rod 12 and the drill bit 4 on the second inner drill rod 34, a cavity 121 is arranged in the inner main stirring rod 12, the cavity 121 is communicated with the grouting channel 31, and a plurality of grout spraying holes 122 communicated with the cavity 121 are arranged on the inner main stirring rod 12. The grout supply pipe is connected to the top of the first inner drill rod 32, when the drill bit 4 drills to a specified depth underground, grout is supplied into the grouting channel 31 through the grout supply pipe, and as the inner main stirring rod 12 is positioned at different horizontal heights, grout is sprayed out from the grout outlet 341 and the plurality of grout spraying holes 122 at different horizontal heights, so that the grout is more easily mixed with a soft soil foundation uniformly, and the grout is distributed in a pile body of the pile more uniformly, thereby improving the pile forming quality.
In addition, the guniting hole 122 is hinged with a baffle 13 for shielding the guniting hole 122, a torsion spring 14 is sleeved on a hinge shaft of the baffle 13, one end of the torsion spring 14 is fixed on the inner main stirring rod 12, the other end of the torsion spring 14 is fixed on the baffle 13, a limiting block 15 is fixed on the inner wall of the inner main stirring rod 12 at the position of the guniting hole 122, and the baffle 13 abuts against the limiting block 15 under the torsion action of the torsion spring 14, so that the baffle 13 can shield the guniting hole 122 more stably, the possibility that soil enters the cavity 121 from the guniting hole 122 when the inner drill rod 3 drives the inner main stirring rod 12 to rotate is reduced, the possibility that the soil blocks the cavity 121 can be further reduced, and cement slurry can enter the cavity 121 more smoothly and be sprayed out from the guniting hole 122.
When grout is supplied into the grouting channel 31, the baffle 13 can be rotated and sprayed out of the grout spraying hole 122 due to high pressure of the grout, and after the grout spraying is finished, the baffle 13 is reset under the torsion action of the torsion spring 14.
Referring to fig. 4 and 5, the auxiliary stirring mechanism 16 includes a plurality of inner auxiliary stirring rods 161 and an auxiliary driving assembly 162, the plurality of inner auxiliary stirring rods 161 are uniformly arranged along the outer periphery of the inner main stirring rod 12, and the inner auxiliary stirring rods 161 increase the contact area between the inner main stirring rod 12 and the soft soil foundation and the cement slurry, so that the stirring effect of the inner main stirring rod 12 on the cement slurry and the soft soil foundation can be improved.
Referring to fig. 4 and 5, in the present embodiment, the number of the auxiliary driving assemblies 162 is also three as an example, and the auxiliary driving assemblies 162 are located between the inner main stirring rod 12 provided on the first inner drill rod 32 and the inner main stirring rod 12 provided on the second inner drill rod 34. The auxiliary driving assembly 162 comprises a protective cover 1622, an inner driving motor 1621, a driving shaft 1623 and a plurality of driving rods 1624 uniformly distributed on the driving shaft 1623, the protective cover 1622 is mounted on the inner wall of the second inner drill rod 34 through screws, and one end of the top wall of the protective cover 1622, which is far away from the second inner drill rod 34, is inclined downwards, so that cement paste can more smoothly fall down from the top wall of the protective cover 1622. Interior driving motor 1621 installs in protection casing 1622, protects interior driving motor 1621 through protection casing 1622 to reduce the grout and influence the possibility of interior driving motor 1621 work. The protection casing 1622 is located the below of threaded rod 33, realizes through threaded connection that threaded rod 33 and first interior drilling rod 32 can dismantle the connection to be convenient for the staff changes the protection casing 1622 and overhauls driving motor 1621 internally.
The one end of drive shaft 1623 runs through interior drilling rod 3 and with interior driving motor 1621's output shaft coaxial coupling, one of them actuating lever 1624 with be located one of them interior supplementary stirring rod 161 coincide setting of drive shaft 1623 top, another actuating lever 1624 with be located one of them interior supplementary stirring rod 161 coincide setting of drive shaft 1623 below to when interior driving motor 1621 drives drive shaft 1623 and rotates, drive shaft 1623 drives a plurality of actuating levers 1624 and rotates around the axial of drive shaft 1623, the stirring rod 161 is assisted around interior main stirring rod 12 axial rotation in the drive is a plurality of simultaneously, make grout and soft soil base form the stirring swirl. The stirring rod vortex formed by the axial rotation of the inner auxiliary stirring rod 161 around the inner main stirring rod 12 is different from the stirring vortex disturbance direction formed by the rotation of the inner main stirring rod 12 driven by the inner drill rod 3, so that the stirring effect on cement paste and soft soil foundation can be further improved, the cement paste can be more uniformly distributed in the pile, and the quality of the pile can be improved.
Referring to fig. 3 and 6, the stirring rod 7 is rotatably connected to the side wall of the outer drill rod 2, the stirring rod 7 is uniformly arranged along the outer periphery of the outer drill rod 2, and the spiral fan blades 8 are sleeved and fixed on the outer drill rod 2. The driving device 5 drives the inner drill rod 3 and the outer drill rod 2 to rotate in opposite directions, and drives the inner main stirring rod 12 and the stirring rod 7 to rotate in opposite directions, so that the possibility of slurry bleeding can be reduced. In the rotating process of the stirring rod 7, the stirring rod 7 is driven by the external driving mechanism 9 to drive the spiral fan blades 8 to rotate, so that the cement slurry and the soft soil foundation are mixed more uniformly.
Referring to fig. 6 and 7, the outer driving mechanism 9 includes an outer driving motor 94, a driving sprocket 91, a chain 93, a plurality of driven sprockets 92, and a lubricating assembly 95 for lubricating the chain 93, the outer drill rod 2 is sleeved and fixed with the mounting plate 10, the outer driving motor 94 is mounted on the mounting plate 10, and an output shaft of the outer driving motor 94 extends through the outer drill rod 2 to a position between the first inner drill rod 32 and the outer drill rod 2.
The driving chain wheel 91, the driven chain wheels 92 and the chain 93 are all located between the first inner drill rod 32 and the outer drill rod 2, the driving chain wheel 91 is coaxially connected to an output shaft of the outer driving motor 94, the driven chain wheels 92 are coaxially connected to the stirring rod 7 in a one-to-one correspondence mode, and the chain 93 is wound on the driving chain wheel 91 and the driven chain wheels 92. The outer driving motor 94 is started to drive the driving chain wheel 91 to rotate, the driving chain wheel 91 rotates to drive each driven chain wheel 92 to rotate through the chain 93, so that the driven chain wheels 92 can drive each stirring rod 7 to rotate, and further can drive the spiral fan blades 8 to rotate to stir cement paste and soft soil foundation, so that the cement paste and the soft soil foundation are mixed more uniformly, and the pile forming quality is improved.
Referring to fig. 6 and 7, the lubrication assembly 95 includes an oil storage sac 951, an oil guide pipe 952, an oil guide nozzle 953 communicated with the oil guide pipe 952, an oil supply pipe 954, and a sealing cap 955 screwed to the oil supply pipe 954, wherein the oil storage sac 951 is filled with lubricating oil, one end of the oil supply pipe 954, which is far away from the sealing cap 955, is communicated with the oil storage sac 951, and oil can be supplied into the oil storage sac 951 through the oil supply pipe 954. A mounting frame 956 is fixed on the outer drill rod 2, one end of the oil storage bag 951 facing the outer drill rod 2 is bonded on the mounting frame 956, one end of the oil guide pipe 952 is communicated with the oil storage bag 951, and the other end of the oil guide pipe 952 extends to a position between the inner drill rod 3 and the outer drill rod 2, so that the oil guide nozzle 953 is positioned above the driving sprocket 91. After the external driving mechanism 9 operates for a period of time, the worker pushes the oil storage bag 951 to make the lubricating oil drop onto the chain 93 through the oil guide pipe 952 and the oil guide nozzle 953 to lubricate and maintain the chain 93, so that on one hand, the friction between the chain 93 and the driving sprocket 91 and the driven sprocket 92 can be reduced, the noise in operation can be reduced, on the other hand, the possibility of breakage of the chain 93 can be reduced, and the service life of the chain 93 can be prolonged.
Referring to fig. 3 and 8, the sealing mechanism 11 includes a sealing ring 111 and a plurality of balls 112, the sealing ring 111 is sleeved and fixed on the first inner drill rod 32, the sealing ring 111 is provided with a rotating groove 1111 for the outer drill rod 2 to be fitted into, the balls 112 are rotatably disposed in the rotating groove 1111, the bottom of the outer drill rod 2 is disposed in the rotating groove 1111 and attached to the balls 112, the balls 112 can reduce the contact area between the bottom end of the outer drill rod 2 and the bottom of the rotating groove 1111, so that the friction force applied to the outer drill rod 2 in the rotating process can be reduced, and the driving force of the driving device 5 can be reduced. Meanwhile, the sealing ring 111 can reduce the possibility that soil enters between the inner drill rod 3 and the outer drill rod 2 to influence the rotation of the driven chain wheel 92 in the descending process of the outer drill rod 2 and the inner drill rod 3, so that the outer driving mechanism 9 can operate more stably.
The implementation principle of the bidirectional cement mixing pile machine in the embodiment of the application is as follows: the driving device 5 drives the inner drill rod 3 and the outer drill rod 2 to rotate in opposite directions, when the drill bit 4 drills to a specified depth underground, slurry is supplied into the grouting channel 31, and the slurry is sprayed out from the slurry outlet 341 and the plurality of slurry spraying holes 122 with different horizontal heights, so that the slurry is more easily mixed with a soft soil foundation uniformly. The inner drill rod 3 and the outer drill rod 2 drive the inner main stirring rod 12 and the stirring rod 7 to rotate in opposite directions, so that the possibility of slurry overflow can be reduced.
In the process that the stirring rod 7 rotates around the axial direction of the outer drill rod 2, the stirring rod 7 is driven by the outer driving mechanism 9 to drive the spiral fan blades 8 to rotate, the stirring effect of the stirring rod 7 on cement paste and soft soil foundation can be improved, and the cement paste and the soft soil foundation are mixed more uniformly. In the process that the inner main stirring rod 12 rotates around the axial direction of the inner drill rod 3, the inner driving motor 1621 is started to drive the plurality of driving rods 1624 to rotate around the axial direction of the driving shaft 1623, and simultaneously the plurality of inner auxiliary stirring rods 161 are driven to rotate around the axial direction of the inner main stirring rod 12, so that the cement paste and the soft soil foundation form a stirring vortex. The stirring rod vortex formed by the axial rotation of the inner auxiliary stirring rod 161 around the inner main stirring rod 12 is different from the stirring vortex disturbance direction formed by the rotation of the inner main stirring rod 12 driven by the inner drill rod 3, so that the stirring effect on cement paste and soft soil foundation can be further improved, the cement paste can be more uniformly distributed in the pile, and the quality of the pile can be improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A bidirectional cement mixing pile machine comprises a mixing pile machine body (1), an outer drill rod (2), an inner drill rod (3), a drill bit (4) and a driving device (5) for driving the inner drill rod (3) and the outer drill rod (2) to rotate towards opposite directions, wherein the driving device (5) is arranged on the mixing pile machine body (1), the outer drill rod (2) is sleeved on the inner drill rod (3), a grouting channel (31) is arranged inside the inner drill rod (3), the drill bit (4) is arranged at the bottom end of the inner drill rod (3), and a grout outlet (341) is formed in the inner drill rod (3);
the method is characterized in that: be equipped with on the lateral wall of interior drilling rod (3) a plurality of interior main puddlers (12), it is connected with a plurality of puddlers (7) to rotate on the lateral wall of outer drilling rod (2), be equipped with helical fan blade (8) on puddler (7), be equipped with a plurality of outer actuating mechanism (9) that are used for driving puddler (7) pivoted on outer drilling rod (2).
2. The bidirectional cement mixing pile machine according to claim 1, characterized in that: the outer driving mechanism (9) comprises a driving chain wheel (91), a driven chain wheel (92), a chain (93) and an outer driving motor (94), a space is reserved between the outer wall of the inner drill rod (3) and the inner wall of the outer drill rod (2), and a sealing mechanism (11) used for sealing the space between the inner drill rod (3) and the outer drill rod (2) is arranged on the inner drill rod (3);
the driving chain wheel (91), the driven chain wheel (92) and the chain (93) are all located between the inner drill rod (3) and the outer drill rod (2), a mounting plate (10) is arranged on the outer drill rod (2), the outer driving motor (94) is mounted on the mounting plate (10), an output shaft of the outer driving motor (94) extends to a position between the outer drill rod (2) and the inner drill rod (3), and the driving chain wheel (91) is coaxially connected to an output shaft of the outer driving motor (94);
the driven chain wheel (92) is coaxially connected to the stirring rod (7), and the chain (93) is wound on the driving chain wheel (91) and the driven chain wheel (92).
3. The bidirectional cement mixing pile machine according to claim 2, characterized in that: sealing mechanism (11) include sealing ring (111) and a plurality of ball (112), sealing ring (111) cover is established on interior drilling rod (3), be equipped with the confession on sealing ring (111) outer drilling rod (2) cooperation rotation groove (1111) of putting into, ball (112) rotate to set up in rotation groove (1111), outer drilling rod (2) are arranged in rotate in groove (1111) and with ball (112) laminate mutually.
4. The bidirectional cement mixing pile machine according to claim 2, characterized in that: the external driving mechanism (9) further comprises a lubricating assembly (95), the lubricating assembly (95) comprises an oil storage bag (951), an oil guide pipe (952) and an oil guide nozzle (953), and lubricating oil is arranged in the oil storage bag (951);
be equipped with installing frame (956) on outer drilling rod (2), oil storage bag (951) are located in installing frame (956), lead the one end of oil pipe (952) with oil storage bag (951) intercommunication, the other end of leading oil pipe (952) extends to interior drilling rod (3) with between outer drilling rod (2), it is located to lead glib talker (953) the top of driving sprocket (91).
5. The bidirectional cement mixing pile machine according to claim 1, characterized in that: the inner main stirring rod (12) is internally provided with a cavity (121) and communicated with the grouting channel (31), and the inner main stirring rod (12) is provided with a plurality of grouting holes (122).
6. The bidirectional cement mixing pile machine according to claim 5, characterized in that: a baffle (13) is hinged to the guniting hole (122), a torsion spring (14) is sleeved on a hinge shaft of the baffle (13), one end of the torsion spring (14) is connected with the inner main stirring rod (12), and the other end of the torsion spring (14) is connected with the baffle (13); the inner wall of the inner main stirring rod (12) is provided with a limiting block (15), and the baffle (13) is abutted against the limiting block (15).
7. The bidirectional cement mixing pile machine according to claim 1, characterized in that: interior main stirring rod (12) rotate to be connected on interior drilling rod (3), be equipped with a plurality of auxiliary mixing mechanism (16) on interior drilling rod (3), auxiliary mixing mechanism (16) are including locating in a plurality of in main stirring rod (12) assist stirring rod (161) and be used for driving in main stirring rod (12) pivoted auxiliary drive subassembly (162), the one end of auxiliary drive subassembly (162) is located on interior drilling rod (3), the other end of auxiliary drive subassembly (162) supports and pushes away interior auxiliary stirring rod (161).
8. The bidirectional cement mixing pile machine according to claim 7, characterized in that: auxiliary drive subassembly (162) include interior driving motor (1621), protection casing (1622), drive shaft (1623) and a plurality of actuating lever (1624), protection casing (1622) are located on the inner wall of interior drilling rod (3), interior driving motor (1621) is installed in protection casing (1622), the one end of drive shaft (1623) is run through interior drilling rod (3) and with the output shaft of interior driving motor (1621), a plurality of actuating lever (1624) are located on drive shaft (1623), actuating lever (1624) support and push away interior supplementary stirring rod (161).
9. The bidirectional cement mixing pile machine according to claim 8, characterized in that: the top wall of the protective cover (1622) is arranged in a downward inclined manner at one end far away from the inner drill rod (3).
10. The bidirectional cement mixing pile machine according to claim 8, characterized in that: the inner drill rod (3) comprises a first inner drill rod (32), a threaded rod (33) and a second inner drill rod (34), the threaded rod (33) is arranged on the second inner drill rod (34), the threaded rod (33) is in threaded connection with the first inner drill rod (32), and the first inner drill rod (32) is connected with the driving device (5);
the drill bit (4) is connected to one end, far away from the threaded rod (33), of the second inner drill rod (34), and the threaded rod (33) is located between the protective cover (1622) and the inner main stirring rod (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210866824.1A CN115142406A (en) | 2022-07-22 | 2022-07-22 | Bidirectional cement mixing pile machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210866824.1A CN115142406A (en) | 2022-07-22 | 2022-07-22 | Bidirectional cement mixing pile machine |
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| CN115142406A true CN115142406A (en) | 2022-10-04 |
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| CN202210866824.1A Pending CN115142406A (en) | 2022-07-22 | 2022-07-22 | Bidirectional cement mixing pile machine |
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| CN (1) | CN115142406A (en) |
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| CN116272477A (en) * | 2023-03-30 | 2023-06-23 | 中国十七冶集团有限公司 | Accelerating straw mud stirring tool and mounting method |
| CN117328445A (en) * | 2023-12-01 | 2024-01-02 | 上海渊丰地下工程技术有限公司 | Construction device for air hardening cement soil mixing pile |
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