CN211922602U - Drilling tool for composite stirring cement stirring pile - Google Patents
Drilling tool for composite stirring cement stirring pile Download PDFInfo
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- CN211922602U CN211922602U CN202020275253.0U CN202020275253U CN211922602U CN 211922602 U CN211922602 U CN 211922602U CN 202020275253 U CN202020275253 U CN 202020275253U CN 211922602 U CN211922602 U CN 211922602U
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- stirring
- drilling tool
- tool base
- rudder shaft
- bevel gear
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model relates to a ground construction equipment provides a compound stirring cement mixing stake drilling tool, include: the drilling tool comprises a drilling tool base body, a rudder shaft and a stirring cutter roller, wherein one end of the drilling tool base body is used for being connected with a drill rod; the rudder shaft is arranged at the other end of the drilling tool base body; the stirring knife roll is arranged on the side face of the drilling tool base body and is perpendicular to the rudder shaft, stirring blades are arranged on the surface of the stirring knife roll, and the stirring knife roll is connected with the rudder shaft through an orthogonal transmission mechanism, so that the stirring knife roll can rotate along with the drilling tool base body and can rotate. The utility model discloses well stirring rotor passes through the quadrature drive mechanism and is connected with the rudder axle to make stirring rotor and rudder axle can be with drilling tool base member synchronous revolution, and when the rudder axle received the resistance and stops rotatoryly, the stirring rotor can also follow self axis rotation when rotatory with the drilling tool base member, thereby realize profit stirring function, improved the stirring efficiency of cement stirring stake drilling tool greatly, also improved the stirring simultaneously and smashed the fineness.
Description
Technical Field
The utility model relates to a ground construction equipment especially relates to a compound stirring cement mixing pile drilling tool.
Background
The cement-soil stirring method for reinforcing saturated soft clay foundation features that cement is used as solidifying agent, and the cement slurry pressed into soft soil is forcibly stirred with peripheral soft soil by rotary stirring blades in deep foundation by special stirring machine. The reinforcing depth of the cement mixing pile is between 5 and 20 m.
The cement soil stirring method is suitable for treating soil layers such as silt, mucky soil, plain filling soil, soft-plastic cohesive soil, loose-medium dense fine sand, slightly dense-medium dense silt, loose-slightly dense medium coarse sand, gravel sand, loess and the like. The cement mixing method can adopt single-head, double-head and multi-head blade mixing drilling tools to form a cement reinforcing body; the cement soil stirring method comprises the following procedures according to construction control requirements: the pile-forming time is not less than 40min by adopting a two-spraying four-stirring process of forward circulation drilling to the design depth → opening a high-pressure grouting pump → reverse circulation lifting and cement slurry spraying → 0.3m below a working datum plane → repeatedly stirring and drilling down to the design depth → reverse circulation lifting and cement slurry spraying to the ground surface → pile-forming is finished. Laboratory test practices prove that the cement and the soft soil are stirred more uniformly, the smaller the soil blocks are crushed, the smaller the discreteness of cement-soil bond strength is, and the higher the strength is. Therefore, the key factors influencing the structural strength of the cement-soil mixing pile are the mixing uniformity of cement and soft soil and the crushed thickness of soil blocks, and the mixing uniformity and the crushed thickness of the soil blocks are key indexes for checking the performance of a cement mixing pile mixing drilling tool. The existing cement mixing pile drilling tool is low in mixing efficiency and poor in mixing and crushing fineness of soft soil.
SUMMERY OF THE UTILITY MODEL
Therefore, a composite stirring cement stirring pile drilling tool needs to be provided for solving the technical problems that the stirring efficiency of the existing cement stirring pile drilling tool is low and the stirring and crushing fineness is not good.
In order to achieve the above object, the present invention provides a composite mixing cement mixing pile drilling tool, comprising:
one end of the drilling tool base body is connected with the drill rod and can synchronously rotate with the drill rod;
the rudder shaft is arranged at the other end of the drilling tool base body, and a guide rudder is arranged on the rudder shaft;
the stirring knife roll is arranged on the side face of the drilling tool base body and is perpendicular to the rudder shaft, stirring blades are arranged on the surface of the stirring knife roll, and the stirring knife roll is connected with the rudder shaft through an orthogonal transmission mechanism, so that the stirring knife roll can rotate along with the drilling tool base body and can rotate around the axis of the stirring knife roll.
Furthermore, the orthogonal transmission mechanism comprises a first bevel gear and a second bevel gear, the first bevel gear and the second bevel gear are meshed with each other, the first bevel gear is connected with the rudder shaft, and the second bevel gear is connected with the stirring knife roller.
Further, the rudder shaft and the stirring knife roll rotate along with the drilling tool base body, and when the rudder shaft stops due to resistance, the stirring knife roll rotates along with the drilling tool base body, and the second bevel gear rotates relative to the first bevel gear to enable the stirring knife roll to rotate around the axis of the stirring knife roll.
Furthermore, more than two stirring knife rollers are uniformly arranged on the side surface of the drilling tool base body.
Further, the stirring blade on the stirring knife roller is a spiral blade.
Furthermore, a flange is arranged at one end of the drilling tool base body opposite to the rudder shaft, and the drilling tool base body is connected with the drill rod through the flange.
Furthermore, a guide rudder is arranged at the tail end of the rudder shaft.
Be different from prior art, above-mentioned technical scheme composite mixing cement mixing pile drilling tool includes rudder axle and stirring rotor, wherein, the stirring rotor sets up in the side of drilling tool base member and is perpendicular with the rudder axle, and the stirring rotor passes through quadrature drive mechanism and is connected with the rudder axle, quadrature drive mechanism's power input and output direction mutual quadrature (keeping the vertical relation promptly), thereby make stirring rotor and rudder axle can be with drilling tool base member synchronous revolution, and when the rudder axle received the resistance and stopped rotating, the stirring rotor can also follow self axis rotation when rotatory with the drilling tool base member, thereby realize profit stirring function, the stirring efficiency of cement mixing pile drilling tool has been improved greatly, the fineness is smashed in the stirring has also been improved simultaneously.
Drawings
FIG. 1 is a schematic structural diagram of a composite mixing cement mixing pile drilling tool according to an embodiment;
fig. 2 is a schematic view of a drilling tool of the composite mixing cement mixing pile according to the embodiment after omitting a structure of a part thereof.
Description of reference numerals:
1. a drilling tool base;
11. a flange;
2. a stirring knife roll;
21. a stirring blade;
22. a connecting shaft;
23. a second bevel gear;
3. a rudder shaft;
31. a steering rudder;
32. a rudder shaft body;
33. a first bevel gear;
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1 to 2, the present embodiment is a drilling tool for a composite mixing cement mixing pile. The composite stirring cement stirring pile drill can be arranged at the tail end of a drill rod and rotates along with the drill rod, so that cement paste pressed into soft soil can be forcibly stirred with surrounding soft soil to harden the soft soil.
As shown in fig. 1, the composite mixing cement mixing pile drilling tool comprises a drilling tool base body 1, a mixing cutter roller 2 and a rudder shaft 3. Wherein, the one end and the drilling rod of drilling tool base member 1 ascending on the vertical direction are connected, and steering shaft 3 sets up in the other end of drilling tool base member 1, and stirring rotor 2 sets up in the side of drilling tool base member 1, and the axis of stirring rotor 2 and the axis mutually perpendicular of steering shaft 3. The stirring knife roller 2 is connected with the rudder shaft 3 through an orthogonal transmission mechanism, and the power input direction and the power output direction of the orthogonal transmission mechanism are orthogonal (namely, vertical relation is kept), so that the stirring knife roller 2 can rotate along with the drilling tool base body 1 and can rotate around the axis of the stirring knife roller 2.
Specifically, in order to facilitate the connection between the drilling tool base body 2 and the drill rod, a flange 11 is arranged at one end of the drilling tool base body 1 opposite to the rudder shaft 2, a plurality of through holes are uniformly distributed on the flange 11, and the drilling tool base body 1 and the drill rod can be fixedly connected through the flange 11 and bolts.
The rudder shaft 3 comprises a rudder shaft body 32 and a guide rudder 31, wherein the rudder shaft body 32 can be rotatably supported in the drilling tool base body through a bearing, the guide rudder 31 is arranged at the tail end of the rudder shaft body 32, and the guide rudder 31 can be fixed on the rudder shaft body 32 through a bolt. The number of the stirring knife rollers 2 can be more than two, and the more than two stirring knife rollers 2 are uniformly distributed on the side surface of the drilling tool body 1. Stirring rotor 2 includes stirring vane 21, connecting axle 22 accessible bearing is rotatable to be supported in drilling tool body 1, stirring rotor 2 set up in the end of connecting axle 22, stirring rotor 2 accessible bolt fastening is on connecting axle 22. In order to secure the stirring effect, the surface of the stirring blade roll 2 may be provided with a plurality of stirring blades 21, and the stirring blades are preferably helical blades. The other end of the connecting shaft 22 is perpendicular to the other end of the rudder shaft body 32, and is connected by an orthogonal transmission mechanism, so that the connecting shaft 22 can rotate around the rudder shaft body 32.
As shown in fig. 1 and 2, the orthogonal transmission mechanism connection at least comprises a second bevel gear 23 fixedly connected with the connecting shaft 22 and a first bevel gear 33 fixedly connected with the rudder shaft body 32, wherein the first bevel gear 33 is meshed with the second bevel gear 23. As shown in fig. 2, the first bevel gear 33 and the second bevel gear 23 have gear surfaces forming an angle of 45 ° with the axis, so that power transmission of 90 ° is possible by the first bevel gear 33 and the second bevel gear 23, and the second bevel gear 23 can rotate while revolving the second bevel gear (i.e., the stirring blade roller 2) by rotating the first bevel gear 33 and the second bevel gear 23 while the first bevel gear 33 is stationary. In the embodiment, the orthogonal transmission mechanism adopts the first bevel gear 33 and the second bevel gear 23, so that the first bevel gear and the second bevel gear can be tightly meshed together, and the reliability of transmission connection between the rudder shaft and the stirring cutter roller is ensured.
In another embodiment, the first bevel gear 33 is a face bevel gear, the second bevel gear 23 is a normal bevel gear, and orthogonal transmission is realized through the face bevel gear and the normal bevel gear. Wherein the face bevel gear has the engaging tooth surface on the end face of the gear (i.e. in a 90 ° relationship with the axis), and the normal bevel gear has the engaging tooth surface on the side face of the gear (i.e. in a parallel relationship with the axis).
When the composite stirring cement stirring pile drilling tool is used, after the steering rudder 31 of the rudder shaft 3 is drilled under the composite stirring cement stirring pile drilling tool contacts with a soil layer, the rudder shaft 3 stops rotating due to the action of soil resistance, at the moment, the drilling tool matrix 1 drives the stirring knife roll 2 to rotate, and simultaneously, the second bevel gear 23 of the stirring knife roll rotates around the first bevel gear 33 on the rudder shaft 3 to drive the stirring knife roll 2 and the stirring blades 21 to rotate, so that the composite motion that the drilling tool matrix 1 drives the stirring knife roll 2 to revolve and the stirring knife roll 2 rotates around the axis of the composite stirring knife roll 2 is formed. When the stirring blade roll 2 contacts the soil, the stirring blade on the stirring blade roll 2 pulverizes and stirs the soil, and at this time, the resistance of the stirring blade roll to rotate and pulverize the soil is simultaneously applied to the first bevel gear 33 of the rudder shaft 3 through the second bevel gear 23, so that the blade of the rudder shaft also has a stirring force to overcome the resistance of the soil. Therefore, if the soil layer is hard and the resistance of the rudder shaft 3 is large and the rotation is stopped, the rudder shaft 3 only plays a role of guiding the up-and-down drill propulsion, and the soil is crushed and stirred by the revolution and rotation of the stirring blades on the stirring knife roll 2; if the soil layer is soft, the blades on the rudder shaft 3 start to rotate to stir the soil layer drilled downwards. Therefore, the drilling tool has the stirring form that the two stirring knife rolls stir simultaneously and the two stirring knife rolls and the rudder shaft stir together, namely has the multiple composite stirring function.
Above-mentioned technical scheme composite mixing cement mixing pile drilling tool includes rudder shaft 3 and stirring rotor 2, wherein, stirring rotor 2 sets up in the side of drilling tool base member and rudder shaft 3 is perpendicular to stirring rotor 2 is connected with rudder shaft 3 through first bevel gear 33 and second bevel gear 23, thereby makes stirring rotor 2 and rudder shaft 3 can be with drilling tool base member synchronous revolution, and when the rudder shaft received the resistance and stopped rotating, stirring rotor 2 can also follow self axis rotation when rotatory with the drilling tool base member. Compared with the simple stirring and crushing of the flat blade rotating spiral lifting of the traditional single-head, double-head and multi-head stirring drilling tool, the composite stirring cement stirring pile drilling tool has incomparable advantages on the crushing and stirring effects of soil blocks, the pile forming quality and the pile forming speed. This compound stirring cement mixing pile drilling tool stirring rotor 2 is at the in-process of rotation, stirring vane cutting clod forms the columnar crushing cutting soil body, stirring rotor 2 is under the drive of the drilling tool base member of being connected with the drilling rod simultaneously, the stirring rotor revolves around the drilling rod center, therefore at drilling tool underdrill in-process, stirring vane is except smashing the soil layer under the stirring, stir once more to the last soil layer that has stirred crushing simultaneously and smash, therefore be equivalent to carry out a lot of to same soil layer and smash and stir, make the crushing of clod and stir more evenly with each other of grout. Due to the adoption of a cutting and stirring mode, the single-head, double-head and multi-head stirring drilling tool has a blade cutting and stirring blind area in the spiral lifting and rotating process of the flat blade, and the phenomena that pile foundation cement and soil blocks are not uniformly stirred, the cement wraps the soil blocks, the cement does not exist in the soil blocks and the like to influence the pile forming quality because part of the soil blocks are not crushed by the blades.
When the traditional drilling tool is used for construction, the construction quality requirement can be met only by strictly performing the process of 'two-spraying and four-stirring', and the composite stirring cement stirring pile drilling tool adopting the technical scheme greatly improves the stirring efficiency of pile foundation cement and soil blocks, so that the good pile forming effect can be achieved only by adopting the process of two-spraying and four-stirring without adopting the process of two-spraying and two-stirring, the stirring flow can be saved twice, and the pile forming quality and the operation efficiency are improved.
It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a compound stirring cement mixing pile drilling tool which characterized in that includes:
one end of the drilling tool base body is connected with the drill rod and can synchronously rotate with the drill rod;
the rudder shaft is arranged at the other end of the drilling tool base body, and a guide rudder is arranged on the rudder shaft;
the stirring knife roll is arranged on the side face of the drilling tool base body and is perpendicular to the rudder shaft, stirring blades are arranged on the surface of the stirring knife roll, and the stirring knife roll is connected with the rudder shaft through an orthogonal transmission mechanism, so that the stirring knife roll can rotate along with the drilling tool base body and can rotate around the axis of the stirring knife roll.
2. The composite stirring cement mixing pile drilling tool as recited in claim 1, wherein said orthogonal transmission mechanism comprises a first bevel gear and a second bevel gear, said first bevel gear and said second bevel gear are engaged with each other, said first bevel gear is connected with said rudder shaft, said second bevel gear is connected with said stirring knife roller.
3. The composite stirring cement mixing pile drilling tool as recited in claim 2, wherein said rudder shaft and said stirring cutter roller rotate along with said drilling tool base, when said rudder shaft is stopped by resistance, said stirring cutter roller rotates along with said drilling tool base, and said second bevel gear rotates relative to said first bevel gear to make the stirring cutter roller rotate around its axis.
4. The composite stirring cement stirring pile drilling tool as recited in claim 1, wherein more than two stirring knife rolls are uniformly arranged on the side surface of the drilling tool base body.
5. The composite stirring cement stirring pile drilling tool as recited in claim 1, wherein the stirring blade on the stirring cutter roller is a helical blade.
6. The composite mixing cement mixing pile drilling tool as claimed in claim 1, wherein a flange is provided at an end of the drilling tool base opposite to the rudder shaft, and is connected with a drill pipe through the flange.
7. The composite stirring cement mixing pile drilling tool as recited in claim 1, wherein a guide rudder is provided at a distal end of the rudder shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020275253.0U CN211922602U (en) | 2020-03-09 | 2020-03-09 | Drilling tool for composite stirring cement stirring pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020275253.0U CN211922602U (en) | 2020-03-09 | 2020-03-09 | Drilling tool for composite stirring cement stirring pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211922602U true CN211922602U (en) | 2020-11-13 |
Family
ID=73347468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020275253.0U Expired - Fee Related CN211922602U (en) | 2020-03-09 | 2020-03-09 | Drilling tool for composite stirring cement stirring pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211922602U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112726581A (en) * | 2020-12-30 | 2021-04-30 | 佛山科学技术学院 | Cement mixing pile drill bit with bidirectional rotating mixing blades |
| CN114684542A (en) * | 2022-03-18 | 2022-07-01 | 江苏元佳新材料有限公司 | Method and device for automatically changing layers of irradiated cargo hanging box |
-
2020
- 2020-03-09 CN CN202020275253.0U patent/CN211922602U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112726581A (en) * | 2020-12-30 | 2021-04-30 | 佛山科学技术学院 | Cement mixing pile drill bit with bidirectional rotating mixing blades |
| CN114684542A (en) * | 2022-03-18 | 2022-07-01 | 江苏元佳新材料有限公司 | Method and device for automatically changing layers of irradiated cargo hanging box |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |