CN214940077U - Bidirectional cement stirring pile head - Google Patents
Bidirectional cement stirring pile head Download PDFInfo
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- CN214940077U CN214940077U CN202121164623.4U CN202121164623U CN214940077U CN 214940077 U CN214940077 U CN 214940077U CN 202121164623 U CN202121164623 U CN 202121164623U CN 214940077 U CN214940077 U CN 214940077U
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Abstract
The utility model discloses a two-way cement stirring pile head, include: the rotary outer ring body is connected with the central shaft through a connecting rod and rotates along with the central shaft; a plurality of outer stirring blades extending upwards are arranged on the rotary outer ring body; the central shaft is connected with the stirring pile; the inner stirring component comprises an inner stirring shaft and an inner stirring paddle; the inner stirring shaft is clamped on the rotary outer ring body and extends towards the direction of the ring center; the inner stirring paddle is perpendicular to the inner stirring shaft. The utility model discloses the stirring in-process forms the two-way shear plane of multiunit, has improved stirring efficiency greatly for cement takes place multiple reaction under the soil body fully surrounds, improves cement soil body intensity.
Description
Technical Field
The utility model relates to a ground treatment field. More specifically, the utility model relates to a two-way cement stirring pile head.
Background
The cement mixing pile is used for reinforcing saturated soft clay foundation, and it uses cement as curing agent, and through mechanical mixing, the soft clay and curing agent are forcedly mixed in the deep position of foundation to form cement-soil cylinder. The cement mixing pile makes use of a series of physical and chemical reactions between the curing agent and the soil to make the cylindrical pile body have a certain strength, and the soil around the pile body is partially improved to form a composite foundation with integrity, water stability and a certain strength, thereby improving the bearing capacity of the foundation, reducing the uneven settlement of the foundation and achieving the purpose of reinforcing the foundation. Because cement is a medium with certain activity, the medium reacts under the surrounding of soil, the action is complex, after some cement is hydrolyzed and hydrated to generate various hydrate compounds, some cement can generate ion exchange, aggregation and hardening reaction, the strength of the cement soil body can be greatly improved, the stirring efficiency for achieving the purpose needs to be ensured, the shearing surface of the pile head of the existing cement soil stirring pile is few, the stirring efficiency can not be ensured, especially when the operation is carried out in a large operation area, a double-shaft or three-shaft stirring pile is often adopted for operation, and the soft foundation between the shafts of the double-shaft or three-shaft can not be strengthened.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.
The utility model discloses it is still another purpose to provide a two-way cement stirring pile head, and it forms the two-way shear plane of multiunit at the stirring in-process, has improved stirring efficiency greatly for cement takes place multiple reaction under the soil body fully surrounds, improves cement soil body intensity.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a bidirectional cement mixing pile head, including:
the rotary outer ring body is connected with the central shaft through a connecting rod and rotates along with the central shaft; the central shaft is connected with the stirring pile; the other side of the central shaft connected with the stirring pile is connected with a spiral cutter head; a plurality of outer stirring blades extending upwards are arranged on one surface of the outer rotating ring body, which is far away from the tunneling direction, a plurality of first blade groups are arranged on the outer rotating ring body along the tunneling direction, and a certain included angle is formed between each first blade group and the outer tangent surface of the outer rotating ring body; a plurality of second blades are fixed on the connecting rod, the blade backs of the second blades are welded to the other side provided with the stirring pile, a certain angle is formed between the blade backs of the second blades and the connecting rod, and the depths of the spiral blade heads, the second blades on the connecting rod and the first blade group on the rotary outer ring body are the same;
the inner stirring component comprises an inner stirring shaft and an inner stirring paddle; the inner stirring shaft is clamped on the rotary outer ring body and extends towards the direction of the ring center; the inner stirring paddle is perpendicular to the inner stirring shaft, and the length of the inner stirring paddle is not larger than the depth of the spiral cutter head.
Preferably, the driving motor of the inner stirring shaft is fixed on the outer rotating ring body.
Preferably, the stirring device is characterized in that a protective shell is arranged on a driving motor of the inner stirring shaft, and at least one surface of the protective shell is movably arranged.
Optionally, the length of the outer stirring blade is equal to the length of the inner stirring paddle.
Preferably, the inner stirring assemblies are arranged in two groups, and the inner stirring shafts of the two groups of inner stirring assemblies are on the same straight line.
Preferably, the acute angle formed by the back of the second blade and the connecting rod is 25-55 degrees.
Preferably, the acute angle formed by the back of the first blade group on the outer rotary ring body and the external tangent line of the outer rotary ring body is 25-55 degrees.
The utility model discloses at least, include following beneficial effect: firstly, the bidirectional cement stirring pile head provided by the utility model forms a plurality of groups of bidirectional shearing surfaces in the stirring process, so that the stirring efficiency is greatly improved, cement can generate a plurality of reactions under the full surrounding of soil, and the strength of the cement soil is improved; secondly, the bidirectional cement mixing pile head provided by the utility model is simply connected with the mixing pile, is connected with the mixing pile at any time, and has good adaptability; thirdly, the utility model provides a two-way cement stirring pile head protection mechanism is complete, long service life.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural view of the bidirectional cement mixing pile head in a technical scheme of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1, the utility model provides a two-way cement stirring pile head, include:
a rotary outer ring body 1 connected to the central shaft 9 through a connecting rod 2 and rotating with the central shaft 9; a plurality of outer stirring blades 4 extending upwards are arranged on one surface of the outer rotating ring body 1, which is far away from the tunneling direction, a plurality of first blade sets 10 are arranged on the outer rotating ring body 1 along the tunneling direction, and a certain included angle is formed between each first blade set 10 and the outer tangent surface of the outer rotating ring body 1; the central shaft 9 is connected with the stirring pile; the other side of the central shaft 2 connected with the stirring pile is connected with a spiral cutter head; a plurality of second blades are fixed on the connecting rod 2, the blade backs of the second blades are welded to the other side provided with the stirring pile, a certain angle is formed between the blade backs of the second blades and the connecting rod 2, and the depths of the spiral blade heads, the second blades on the connecting rod and the first blade groups on the rotary outer ring body are the same;
the inner stirring component is clamped on the rotary outer ring body 1 and extends towards the central shaft 2, and comprises an inner stirring shaft 6 and an inner stirring paddle 3; the inner stirring shaft 6 is clamped on the rotary outer ring body 1 and extends towards the central shaft 9; the inner stirring paddle 3 is perpendicular to the inner stirring shaft 6, the length of the inner stirring paddle 3 is not larger than the depth of the spiral cutter head, and the inner stirring shaft 6 starts to rotate after the central shaft 2 tunnels a depth of the spiral cutter head.
In above-mentioned technical scheme, the outer stirring piece 4 that sets up on rotatory outer ring body 1 forms a shear plane at rotatory in-process, this shear plane is the circumference shear plane, the interior stirring rake 3 that sets up on interior (mixing) shaft 6 forms a shear plane again at rotatory in-process, the shear plane that this shear plane and outer stirring piece 4 formed is not in a plane, two shear planes can form two-way stirring process, the stirring that sets up on the outer stirring piece 4 that sets up on rotatory outer ring body 1 and the interior stirring rake 3 that sets up on interior (mixing) shaft 6 is the another side reduces the resistance, complement each other, the stirring efficiency has been improved greatly, make cement fully surround and take place multiple reaction in the soil body, improve cement soil body intensity. In the above technical scheme, the inner stirring paddle 3 rotates along with the inner stirring shaft 6 to form a rotation dimension, and also rotates along with the rotating outer ring body to form a revolution dimension, and the rotation dimension and the revolution dimension form a group of bidirectional stirring models, so that the stirring efficiency is further improved. The spiral tool bit is connected with the another side that the stirring stake is connected to center pin 9, and the 9 other ends of center pin set up spiral tool bit, and spiral tool bit forms a shear plane on its helical section, and the shear plane that this shear plane and interior stirring rake 3 formed is not on a plane, forms another two-way stirring model of group, has improved stirring efficiency greatly. The fixed a plurality of second blades 8 on connecting rod 2, the back of a knife blade of second blade 8 welds in the another side that is equipped with the stirring stake, and with connecting rod 2 becomes certain angle, and the blade 8 that sets up on the connecting rod 2 forms a stirring shear plane along with center pin 9 pivoted in-process, and the shear plane that this shear plane and interior stirring rake 3 formed is not on a plane, forms another two-way stirring model of group, has improved stirring efficiency greatly for cement takes place multiple reaction under the abundant encirclement of the soil body, improves cement soil body intensity. In the technical scheme, the blades on the spiral cutter head and the connecting rod 2 and the blade group 10 on the rotary outer ring body 1 are used for tunneling in a partitioned mode, the difference between the periphery, the center and the middle position is distinguished, different cutter head and cutter group forms are adopted, and compared with a multi-shaft tunneling method, comprehensive strengthening of cement soil during large-area operation is guaranteed. In the technical scheme, the ring body of the rotary outer ring body 1 is solid, so that the pressing weight of the bidirectional cement mixing pile head is ensured.
As shown in fig. 1, in one of the technical solutions, the driving motor 5 of the inner stirring shaft 6 is fixed on the rotating outer ring body 1, and the inner stirring shaft 5 is driven by the independent driving motor 5, so that the power of the central shaft 9 is not divided, and the stirring efficiency is ensured.
As shown in 1, in one of the technical solutions, the cement mixing pile is characterized in that a protection shell 7 is arranged on a driving motor 5 of an inner mixing shaft 6, at least one surface of the protection shell 7 is movably arranged, the protection shell 7 is arranged to be beneficial to protecting the inner mixing shaft 6, prevent soil from immersing a driving machine of the inner mixing shaft, and prolong the service life of the bidirectional cement mixing pile head.
As shown in fig. 1, in one of the technical solutions, the length of the outer stirring blades 4 is equal to the length of the inner stirring paddle 3, and bidirectional stirring is performed simultaneously during tunneling.
As shown in fig. 1, in one of the technical solutions, the inner stirring assemblies are two groups, and the inner stirring shafts 6 of the two groups of inner stirring assemblies are on the same straight line, and in the process that the opposite inner stirring assemblies rotate along with the outer rotating ring, the inner space of the entire outer rotating ring is filled, so that the stirring contact area is enlarged, and the stirring efficiency is further improved.
As shown in fig. 1, in one of the technical solutions, an acute angle formed between the back of the second blade 8 and the connecting rod 2 is 25 ° to 55 °, and when the acute angle formed between the second blade 8 and the connecting rod 2 is 25 ° to 55 °, the shearing resistance is relatively small, the shearing effect is relatively good, and thus the stirring efficiency is relatively high.
As shown in fig. 1, in one of the technical solutions, an acute angle formed by a back of a first blade set on the outer rotary ring and an external tangent of the outer rotary ring is 25 to 55 degrees, so that the shearing resistance is relatively small, the shearing effect is relatively good, and the stirring efficiency is relatively high.
As described above, according to the utility model discloses, the utility model discloses at least including following beneficial effect: firstly, the bidirectional cement stirring pile head provided by the utility model forms a plurality of groups of bidirectional shearing surfaces in the stirring process, so that the stirring efficiency is greatly improved, cement can generate a plurality of reactions under the full surrounding of soil, and the strength of the cement soil is improved; secondly, the bidirectional cement mixing pile head provided by the utility model is simply connected with the mixing pile, is connected with the mixing pile at any time, and has good adaptability; thirdly, the utility model provides a two-way cement stirring pile head protection mechanism is complete, long service life.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (7)
1. Two-way cement stirring pile head, its characterized in that includes:
the rotary outer ring body is connected with the central shaft through a connecting rod and rotates along with the central shaft; the central shaft is connected with the stirring pile; the other side of the central shaft connected with the stirring pile is connected with a spiral cutter head; a plurality of outer stirring blades extending upwards are arranged on one surface of the outer rotating ring body, which is far away from the tunneling direction, a plurality of first blade groups are arranged on the outer rotating ring body along the tunneling direction, and a certain included angle is formed between each first blade group and the outer tangent surface of the outer rotating ring body; a plurality of second blades are fixed on the connecting rod, the blade backs of the second blades are welded to the other side provided with the stirring pile, a certain angle is formed between the blade backs of the second blades and the connecting rod, and the depths of the spiral blade heads, the second blades on the connecting rod and the first blade group on the rotary outer ring body are the same;
the inner stirring component comprises an inner stirring shaft and an inner stirring paddle; the inner stirring shaft is clamped on the rotary outer ring body and extends towards the direction of the ring center; the inner stirring paddle is perpendicular to the inner stirring shaft and the length of the inner stirring paddle is not larger than the depth of the spiral cutter head.
2. The bidirectional cement mixing pile head as recited in claim 1, wherein the driving motor of the inner mixing shaft is fixed to the outer rotating ring body.
3. The bidirectional cement mixing pile head as claimed in claim 2, wherein the driving motor of the inner mixing shaft is provided with a protective housing, at least one face of which is movably disposed.
4. The bi-directional cement mixing pile head of claim 3, wherein the length of said outer mixing blade is equal to the length of said inner mixing blade.
5. The bi-directional cement mixing pile head of claim 1, wherein said inner mixing assemblies are in two groups, and the inner mixing shafts of the two groups of inner mixing assemblies are in the same line.
6. The bi-directional cement mixing pile head of claim 1, wherein the acute angle between the back of the blade on the connecting rod and the connecting rod is 25 ° to 55 °.
7. The bidirectional cement mixing pile head as recited in claim 1, wherein the back of the first blade set on the outer rotary ring forms an acute angle of 25 ° to 55 ° with the outer tangent of the outer rotary ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121164623.4U CN214940077U (en) | 2021-05-27 | 2021-05-27 | Bidirectional cement stirring pile head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121164623.4U CN214940077U (en) | 2021-05-27 | 2021-05-27 | Bidirectional cement stirring pile head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214940077U true CN214940077U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121164623.4U Active CN214940077U (en) | 2021-05-27 | 2021-05-27 | Bidirectional cement stirring pile head |
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| Country | Link |
|---|---|
| CN (1) | CN214940077U (en) |
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2021
- 2021-05-27 CN CN202121164623.4U patent/CN214940077U/en active Active
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