CN209724227U - The double high-pressure stirring-spraying piles of reducing - Google Patents
The double high-pressure stirring-spraying piles of reducing Download PDFInfo
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- CN209724227U CN209724227U CN201920370704.6U CN201920370704U CN209724227U CN 209724227 U CN209724227 U CN 209724227U CN 201920370704 U CN201920370704 U CN 201920370704U CN 209724227 U CN209724227 U CN 209724227U
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- drill bit
- outer tube
- stirring blade
- drilling rod
- stirring
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Abstract
The double high-pressure stirring-spraying piles of the utility model reducing, are to carry out corresponding structure improvement for drill bit and its stirring blade, by casing and elastic link structure to realize frameholst, to reach the Field adjustment that pile radius can be realized with more bit change without disassembly.On the basis of improving operating efficiency and shortening variable diameter adjusting, guarantee the stability of drill bit and drilling rod connection structure.Spray mixing pile includes drilling rod and the drill bit for being connected to drill rod end；High-pressure air pipe and high pressure water mud tube are communicated in drilling rod and drill bit internal；The drills outer circumference is provided at least two layers of stirring blade, is provided with venthole and/or slurry outlet below each layer of stirring blade.The drill bit has the outer tube connecting with drilling rod, in outer cannula tip connection end；The stirring blade has hinged connecting rod and variable diameter bar；The end of variable diameter bar is fixedly connected on outer tube, and the end of connecting rod is movably connected on the vertical transmission mechanism inside outer tube.
Description
Technical field
The utility model relates to it is a kind of without disassembly or more bit change can variable diameter double high-pressure stirring-spraying piles, belong to building work
Journey technical field.
Background technique
At present in Underground Space Excavation construction site, such as subway, underground parking, supermarket or pedestrian passage, apply
There are many double high-pressure stirring-spraying piles of class.The mode that double high-pressure stirring-spraying piles take high pressure gas and high pressure cement slurries to mix, companion
With and participate in the cutting and stirring of stirring blade in drill bit tunneling process, realize that the soil body is merged with the uniform of cement slurry, realize
Cement and the soil body can rapid fusion, so as to significantly improve the intensity of spray mixing pile body.
Due to deep-foundation pit engineering field condition more badly with complexity, no matter in cultivation scale or pile body depth all
It is constantly increasing, so that more stringent requirements are proposed with adaptibility to response for the adjusting used to spray mixing pile scene.
Existing double high-pressure stirring-spraying piles, the connection cooperation of drill bit and drilling rod are fixed, the rotary operations half of stirring blade
Diameter is also fixed.When there is the variation of the supporting construction of construction site and surrounding enviroment, inevitable requirement correspondingly changes stake
Body radius.Currently used double high-pressure stirring-spraying piles can only stop operation, more for a long time for the settling mode of problems
Bit change, operation that is both time-consuming and laborious, increasing field operation and adjusting difficulty, while being also unfavorable for spray mixing pile itself connection structure
Stability, will cause the generation of drill bit accident obscission sometimes.
In view of this special to propose present patent application.
Utility model content
The double high-pressure stirring-spraying piles of reducing described in the utility model, its object is to solve above-mentioned of the existing technology ask
It inscribes and carries out corresponding structure improvement for drill bit and its stirring blade, by casing and elastic link structure to realize that drill bit becomes
Diameter is not necessarily to dismantle the Field adjustment that pile radius can be realized with more bit change to reach.It is improving operating efficiency and is shortening
On the basis of variable diameter is adjusted, guarantee the stability of drill bit and drilling rod connection structure.
To realize above-mentioned purpose of design, the double high-pressure stirring-spraying piles of the reducing mainly include drilling rod and are connected to brill
The drill bit of boom end；
High-pressure air pipe and high pressure water mud tube are communicated in drilling rod and drill bit internal；
The drills outer circumference is provided at least two layers of stirring blade, is provided with outlet below each layer of stirring blade
Hole and/or slurry outlet.
It is in place of difference with the prior art, the drill bit has the outer tube connecting with drilling rod, in outer sleeve end
Portion's connection end；
The stirring blade has hinged connecting rod and variable diameter bar；
The end of variable diameter bar is fixedly connected on outer tube, and the end of connecting rod is movably connected on the vertical biography inside outer tube
Motivation structure.
Such as above-mentioned design scheme, drill bit is designed as to be connected with the cannula structure of end, inside pipe casing is provided with high pressure
Tracheae, high pressure water mud tube and vertical transmission mechanism, while the stirring blade of existing fixed connection or installation is improved to bullet
Property link mechanism.By vertical transmission mechanism successively drive connection bar, variable diameter bar, to change variable diameter bar in drill bit transversal cross-section
Projection radius, i.e., it is final to realize that changing drill bit stirs operating radius, is implemented as in the state of keeping drill bit to connect with drilling rod
The change of stake radius.
Used transmission mechanism can there are many, more preferred embodiment is, vertical transmission mechanism include connection
Hydraulic station and the hydraulic stem inside drilling rod and outer tube；Hydraulic stem is drivingly connected piston, and the end of connecting rod is articulated with work
Plug.
To further improve stirring action power, realizing that cement slurry more can be merged quickly and uniformly with the soil body, needle
Improvement to stirring blade is that several spike-tooths are at least provided on variable diameter bar.
It is more highly preferred to the improvement of refinement be the stirring blade of adjacent two layers, each other in the transversal cross-section of outer tube
It is distributed in alternating expression.I.e. multiple layers of vanes takes alternating expression to be distributed, so that blade is more equal for the stirring action power distribution of the soil body
It is even, while while spraying cement grout, is not easy the soil clogging being reversed.
To sum up content, the double high-pressure stirring-spraying piles of the application reducing have the advantage that
1, frameholst is realized under the premise of without disassembly with more bit change, can adapt to the deep basal pit work of operating condition complexity
The pile body radius change demand of journey operation field effectively guarantees the working efficiency worked continuously, the extensive operation field of reply
Equipment frock allotment.
2, it can be realized rapidly variable diameter operation, be not rely on other subsidiary conditions, variable diameter is easy to operation.
3, variable-diameter structure can't have an adverse effect to drill bit and drilling rod connection structure, drill bit and drilling rod connection structure compared with
It is not in the generation of drill bit obscission for stabilization.
4, effectively guarantee construction speed and quality, can fundamentally improve the intensity of spray mixing pile body.
Detailed description of the invention
Fig. 1 is double high-pressure stirring-spraying pile construction sites schematic diagram；
Fig. 2 is drill bit structure figure；
Fig. 3 is cut-away view before frameholst；
Fig. 4 is cut-away view after frameholst；
Fig. 5 is the A of Fig. 4 to cut-away view；
Fig. 6 is the B of Fig. 4 to cut-away view；
Fig. 7 is the C of Fig. 4 to cut-away view；
Fig. 8 is variable diameter schematic diagram；
As shown in Figures 1 to 8, drilling rod 1, drill bit 2, spike-tooth 3, stirring blade 4, hydraulic station 5, high-pressure pump 6, high-pressure air pipe
11, high pressure water mud tube 12, venthole 13, slurry outlet 14, outer tube 21, end 22, fixed pedestal 23, connecting rod 41, variable diameter
Bar 42, hydraulic stem 51, piston 52.
Specific embodiment
The utility model utility model is described further with reference to the accompanying drawings and examples.
Embodiment 1, as shown in Figures 1 to 7, the double high-pressure stirring-spraying piles of the reducing include:
Drilling rod 1 and the drill bit 2 for being connected to 1 end of drilling rod；
High-pressure pump 6 is from external connection and conveys compressed air and cement grout to high-pressure air pipe 11, high pressure water mud tube
12, drilling rod 1 is connected to the high-pressure air pipe 11 inside drill bit 2 with high pressure water mud tube 12；
The drill bit 2 has the outer tube 21 connecting with drilling rod 1, and connection type can be used welding, grafting or bolt and connect
It connects；End 22 is connected in the end of outer tube 21；
It is internally provided in outer tube 21 for high-pressure air pipe 11 and the perforative fixed pedestal 23 of high pressure water mud tube 12, solid
Determine that hydraulic stem 51 is installed on pedestal 23, hydraulic stem 51 drives and connects piston 52；
Hydraulic station 5 is from external connection and hydraulic stem 51 is driven to move back and forth along the internal diameter of outer tube 21；
The stirring blade 4 has the split type connecting rod 41 being hinged and variable diameter bar 42, one end of connecting rod 41
It is articulated with piston 52；One end of variable diameter bar 42 is fixedly connected on outer tube 21, and the lower section housing in the neighbouring fixed connection place
Venthole 13 and slurry outlet 14 are respectively arranged on pipe 21；Several spike-tooths 3 are respectively arranged on variable diameter bar 42, end 22；
On drill bit 2, the identical stirring blade 4 of double-layer structure may be provided with, each other in the transversal cross-section of outer tube 21
It is upper to be distributed in alternating expression.
Following variable diameter method is realized simultaneously based on the double high-pressure stirring-spraying piles of above-mentioned reducing:
After drill bit 2 breaks the soil body, drilling rod 1 drives the stirring blade 4 on drill bit 2 to rotate and cut, stir；
Pressure-air, high pressure water mud eject below stirring blade 4 respectively, and high pressure gas crushes the soil body, cement slurry
It is merged with the soil body and stirs and form spray mixing pile body；
As shown in connection with fig. 8, the process comparison that pile body diameter becomes larger, hydraulic stem 51 drive piston 52 inside outer tube 21
It vertically moves downward, to push connecting rod 41, make the variable diameter bar 42 with spike-tooth 3 along the radial dilatation of outer tube 21.When
It is opposite that above-mentioned movement when pile body diameter becomes smaller need to be adjusted.
Specifically, L in figure1For the entire length of connecting rod 41 and variable diameter bar 42, L0Piston 52 is driven to drive for hydraulic stem 51
The catenary motion distance of connecting rod 41, d are the occurrence for realizing the variation of stake diameter.
It is horizontal in outer tube 21 to change the variable diameter bar 42 i.e. by hydraulic station 5 successively drive connection bar 41, variable diameter bar 42
Projection radius d on section.
Wherein,
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations all should belong to the protection scope of the utility model utility model appended claims.
Claims (4)
1. a kind of double high-pressure stirring-spraying piles of reducing, include drilling rod (1) and the drill bit (2) for being connected to drilling rod (1) end；
High-pressure air pipe (11) and high pressure water mud tube (12) are communicated with inside drilling rod (1) and drill bit (2)；
The drill bit (2) periphery is provided at least two layers of stirring blade (4), is arranged in the lower section of each layer of stirring blade (4)
There are venthole (13) and/or slurry outlet (14), it is characterised in that:
The drill bit (2) has the outer tube (21) connecting with drilling rod (1), in outer tube (21) end connection end (22)；
The stirring blade (4) has hinged connecting rod (41) and variable diameter bar (42)；
The end of variable diameter bar (42) is fixedly connected on outer tube (21), and the end of connecting rod (41) is movably connected on outer tube (21)
Internal vertical transmission mechanism.
2. the double high-pressure stirring-spraying piles of reducing according to claim 1, it is characterised in that: the vertical transmission mechanism, packet
It includes connection hydraulic station (5) and is located at outer tube (21) internal hydraulic stem (51)；
Hydraulic stem (51) is drivingly connected piston (52), and the end of connecting rod (41) is articulated with piston (52).
3. the double high-pressure stirring-spraying piles of reducing according to claim 1 or 2, it is characterised in that: the stirring blade (4),
It is at least provided on variable diameter bar (42) several spike-tooths (3).
4. the double high-pressure stirring-spraying piles of reducing according to claim 3, it is characterised in that: the stirring blade (4) of adjacent two layers,
It is distributed in the transversal cross-section of outer tube (21) in alternating expression each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920370704.6U CN209724227U (en) | 2019-03-21 | 2019-03-21 | The double high-pressure stirring-spraying piles of reducing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920370704.6U CN209724227U (en) | 2019-03-21 | 2019-03-21 | The double high-pressure stirring-spraying piles of reducing |
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| Publication Number | Publication Date |
|---|---|
| CN209724227U true CN209724227U (en) | 2019-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920370704.6U Active CN209724227U (en) | 2019-03-21 | 2019-03-21 | The double high-pressure stirring-spraying piles of reducing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882073A (en) * | 2019-03-21 | 2019-06-14 | 青岛理工大学 | The double high-pressure stirring-spraying piles of reducing and its variable diameter method |
| CN111945798A (en) * | 2020-08-28 | 2020-11-17 | 湖南城建职业技术学院 | Structure is corrected with building slope to architectural remediation |
-
2019
- 2019-03-21 CN CN201920370704.6U patent/CN209724227U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882073A (en) * | 2019-03-21 | 2019-06-14 | 青岛理工大学 | The double high-pressure stirring-spraying piles of reducing and its variable diameter method |
| CN111945798A (en) * | 2020-08-28 | 2020-11-17 | 湖南城建职业技术学院 | Structure is corrected with building slope to architectural remediation |
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