CN214221091U - Reamer matched with three-wing cage type drill bit of submersible drilling machine - Google Patents
Reamer matched with three-wing cage type drill bit of submersible drilling machine Download PDFInfo
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- CN214221091U CN214221091U CN202120119828.4U CN202120119828U CN214221091U CN 214221091 U CN214221091 U CN 214221091U CN 202120119828 U CN202120119828 U CN 202120119828U CN 214221091 U CN214221091 U CN 214221091U
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- drill bit
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- fixed
- wing cage
- fixed disk
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Abstract
The utility model relates to a supporting enlarger with dive rig three-wing cage drill bit, including U type fixed disk, reaming brill tooth, the fixed plate, the reinforcing floor, adopt this device at the bad stratum in rig trompil initial stage, insert U type fixed disk opening with dive rig three-wing cage drill bit backplate in, fix the enlarger on the drill bit backplate of dive rig three-wing cage drill bit through the bolt through the fixed orifices, carry out the reaming and creep into in send a degree of depth within range, after the drilling depth reaches design pile bolck elevation, tear down the enlarger, continue to creep into according to predetermined position. The device has the advantages that the device is adopted in the bad stratum at the initial stage of drilling of the drilling machine, the influence of the bad stratum at the upper part on the verticality of the formed hole is eliminated, the phenomenon that the deviation of the verticality of the pile hole exceeds the standard due to uneven hardness of the soil layer is avoided, and the quality and the efficiency of the formed hole are improved.
Description
Technical Field
The utility model relates to a with dive rig three-wing cage formula drill bit, in particular to with the supporting enlarger of dive rig three-wing cage formula drill bit.
Background
The cast-in-situ bored pile is used as the traditional process of the geotechnical foundation engineering, and has the advantages of high bearing capacity, adaptability to various geological conditions, simple and easy construction operation, generally not large equipment investment, no soil extrusion, no vibration and the like, so that the cast-in-situ bored pile is widely applied to pile foundation engineering construction. At present, a three-wing cage type drill bit is generally adopted for forming holes in a fourth series covering layer in the Tianjin coastal area.
During the engineering construction process, the three-wing cage type drill bit is found to have defects during the hole forming process. 1. The submersible drilling machine is light, the pilot system is simple, the dead weight is small in the drilling stage, and the hole inclination is easily caused when the drilling machine encounters a stratum with uneven hardness; 2. the upper stratum of a general construction site is complex, unfavorable geological conditions such as underground barriers, backfill soil and the like can greatly influence the quality of pore-forming, pore-forming verticality deviation is easily caused to be large when a pore-forming penetrates through the section of the unfavorable stratum to an original clay soil layer, the problem of pore-forming deviation is solved as a bottleneck for restricting the process method until a drill bit reaches a stable clay stratum, and at the moment, the stability of the pore wall is realized, the slurry performance is adjusted in place, a drilling machine is strongly restricted, and the stability of pore-forming verticality control can be reached.
Disclosure of Invention
In view of the deficiencies in the prior art, the utility model provides a with the supporting enlarger of dive rig three-wing cage drill bit, concrete technical scheme is, a with the supporting enlarger of dive rig three-wing cage drill bit, including U type fixed disk, reaming brill tooth, fixed plate, reinforced rib plate, its characterized in that: the two opposite side walls of the U-shaped fixed disk are respectively provided with a pair of symmetrical thread fixing holes, the inner sides of the two side walls are matched with the outer size of a drill bit guard plate of a three-wing cage type drill bit of the submersible drilling rig, a horizontal reinforcing rib plate is fixed on the outer plane of the fixed plate, two vertical and parallel reaming drilling teeth are fixed on the inner plane of the fixed plate, the distance between one reaming drilling tooth outside and the vertical center line of the U-shaped fixed disk is 10cm, and the U-shaped fixed disk is fixed on one side face of the fixed plate.
The beneficial effects of the utility model are that, at the bad stratum of rig trompil initial stage, adopt this device, eliminated the bad stratum in upper portion and to the straightness's that hangs down influence of pore-forming, avoided the uneven pile hole straightness's that hangs down that leads to of soil layer soft and hard phenomenon that surpasss the standard, promoted the quality and the efficiency of pore-forming.
Drawings
Fig. 1 is a front view of the structure of the utility model.
Detailed Description
As shown in fig. 1, the reamer matched with the three-wing cage type drill bit of the submersible drilling rig comprises a U-shaped fixed disk 2, reamer teeth 3, a fixed plate 4 and reinforcing rib plates 5, wherein a pair of symmetrical thread fixing holes 1 are respectively formed in two opposite side walls of the U-shaped fixed disk 2, the inner sides of the two side walls are matched with the outer size of a drill bit guard plate of the three-wing cage type drill bit of the submersible drilling rig, the horizontal reinforcing rib plates 5 are fixed on the outer plane of the fixed plate 4, two vertical and parallel reamer teeth 3 are fixed on the inner plane of the fixed plate, the distance between one outer reamer tooth 3 and the vertical center line of the U-shaped fixed disk 2 is 10cm, and the U-shaped fixed disk 2 is fixed on one side face of the fixed plate 4.
During the use, in the bad stratum of rig trompil initial stage, adopt this device, insert the dive rig three wing cage formula drill bit backplate in the opening of U type fixed disk 2, fix the enlarger on the drill bit backplate of dive rig three wing cage formula drill bit through the fixed orifices 1 through the bolt, carry out the reaming in the pile feeding degree of depth scope and creep into, after the depth of drilling reaches design pile bolck elevation, tear down the enlarger, continue to creep into according to predetermined position, the pile hole straightness's that has avoided the soil layer hardness inequality to lead to deviation exceeds standard phenomenon, through a plurality of engineering project applications, the pore-forming quality has obtained the assurance.
Claims (1)
1. The utility model provides a with supporting enlarger of dive drill rig three-wing cage drill bit, includes U type fixed disk (2), reaming brill tooth (3), fixed plate (4), reinforcing floor (5), its characterized in that: the two opposite side walls of the U-shaped fixed disk (2) are respectively provided with a pair of symmetrical thread fixing holes (1), the inner sides of the two side walls are matched with the outer size of a drill bit guard plate of a three-wing cage type drill bit of the submersible drilling machine, a horizontal reinforcing rib plate (5) is fixed on the outer plane of the fixed plate (4), two vertical and parallel reaming drill teeth (3) are fixed on the inner plane, the distance between one external reaming drill tooth (3) and the vertical center line of the U-shaped fixed disk (2) is 10cm, the U-shaped fixed disk (2) is fixed on one side surface of the fixed plate (4), during use, the three-wing cage type drill bit guard plate of the submersible drilling machine is inserted into an opening of the U-shaped fixed disk (2), and the reamer is fixed on the drill bit guard plate of the three-wing cage type drill bit of the submersible drilling machine through the fixing holes (1) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120119828.4U CN214221091U (en) | 2021-01-18 | 2021-01-18 | Reamer matched with three-wing cage type drill bit of submersible drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120119828.4U CN214221091U (en) | 2021-01-18 | 2021-01-18 | Reamer matched with three-wing cage type drill bit of submersible drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214221091U true CN214221091U (en) | 2021-09-17 |
Family
ID=77689963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120119828.4U Expired - Fee Related CN214221091U (en) | 2021-01-18 | 2021-01-18 | Reamer matched with three-wing cage type drill bit of submersible drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214221091U (en) |
-
2021
- 2021-01-18 CN CN202120119828.4U patent/CN214221091U/en not_active Expired - Fee Related
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Legal Events
| 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: 20210917 Termination date: 20220118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |