CN216305832U - Cement mixing stake machine drill bit suitable for closely knit thick sand layer - Google Patents
Cement mixing stake machine drill bit suitable for closely knit thick sand layer Download PDFInfo
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- CN216305832U CN216305832U CN202123120469.3U CN202123120469U CN216305832U CN 216305832 U CN216305832 U CN 216305832U CN 202123120469 U CN202123120469 U CN 202123120469U CN 216305832 U CN216305832 U CN 216305832U
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Abstract
The utility model relates to a cement stirring stake machine drill bit suitable for closely knit thick sand layer, belong to the technical field of architectural equipment, including drilling rod and tip, the tip is fixed in the one end of drilling rod, the one end that the tip was kept away from to the drilling rod is provided with the connecting piece, the drilling rod is the integrated into one piece structure with the tip, still include the paddle, the paddle includes the fin and bores the tooth, fin one end is fixed in the drilling rod, it is fixed in the other end of fin to bore the tooth, the fin is spiral downward setting, it is provided with the boss to bore tooth and fin link, this application is for improving the efficiency of construction, reduce construction cost, increase the life of drill bit, a cement stirring stake machine drill bit suitable for closely knit thick sand layer is provided.
Description
Technical Field
The utility model belongs to the technical field of architectural equipment and specifically relates to a cement stirring stake machine drill bit suitable for closely knit thick sand layer is related to.
Background
At present, a soft soil foundation treatment method for geological conditions such as silt, mucky soil and the like mainly adopts cement mixing piles for treatment. However, in the construction process, the stratum such as a sand layer and the like is often encountered, the drilling frictional resistance of the cement mixing pile machine is large, and the frictional resistance is increased along with the continuous penetration of the drill bit. Particularly, the drilling speed of the cement mixing pile machine is lower when the cement mixing pile machine drills in a compact sand layer. The cement mixing pile machine adopts a traditional old drill bit, is welded by common cast iron, and structurally, the old drill bit has no function of extruding soil and drilling down, so that the sinking is difficult.
Traditional cement stirring stake machine drill bit exists poor to stratum adaptability, and the homogeneity of stirring is difficult for mastering, is difficult for mixing evenly, stirs the in-process and produces easily and embrace the brill phenomenon, and deep stirring stake machine drilling speed is slow in closely knit sand layer, and the efficiency of construction is low, and the wearing and tearing that the while mixer drill bit was to when drilling in closely knit sand layer are more serious, and equipment damages seriously.
Disclosure of Invention
In order to improve the efficiency of construction, reduce construction cost, increase the life of drill bit, this application provides a cement stirring stake machine drill bit suitable for closely knit thick sand layer.
The application provides a pair of cement stirring stake machine drill bit suitable for closely knit thick sand layer adopts following technical scheme:
the utility model provides a cement stirring stake machine drill bit suitable for closely knit thick sand layer, includes drilling rod and tip, the tip is fixed in the one end of drilling rod, the drilling rod is kept away from the one end of tip is provided with the connecting piece, the drilling rod is the integrated into one piece structure with the tip.
Through adopting above-mentioned technical scheme, drilling rod and tip adopt integrated into one piece's structure to make the drill bit whole have high strength and high shock resistance, can practice thrift the cost to a certain extent, and the connecting piece makes the drill bit fixed connection more firm on cement stirring stake machine simultaneously, prevents as far as possible that the drill bit from droing, improves cement stirring stake machine's stability.
Preferably, the drilling device further comprises a blade, wherein the blade comprises a wing and a drill tooth, one end of the wing is fixed to the drill rod, and the drill tooth is fixed to the other end of the wing.
By adopting the technical scheme, the blades are added to improve the construction efficiency of the drill bit and facilitate uniform stirring, so that the construction cost is reduced, meanwhile, the wear resistance of the drill bit is improved, frequent replacement of the drill bit is avoided as much as possible, the maintenance frequency is reduced, and the service life of the drill bit is prolonged.
Preferably, the fins are arranged spirally downwards.
Through adopting above-mentioned technical scheme, spiral downward setting makes the drill bit have the trend of cutting the soil and drilling down when rotatory, helps reducing the resistance that sinks, avoids producing as far as possible and embraces the brill phenomenon, helps the discharge to the closely knit grit of brill back simultaneously to improve the efficiency of construction.
Preferably, the drill teeth and the tab connecting ends are provided with reinforcing blocks.
Through adopting above-mentioned technical scheme, utilize the boss to increase the connection area between brill tooth and the fin, improve the intensity and the shock resistance of paddle, prevent to try hard to prevent to bore and take place the skew between tooth and the fin, cause the influence to the efficiency of construction.
Preferably, the connecting piece is a polygonal column, one end of the polygonal column is connected with the drill rod, and the other end of the polygonal column is provided with a threaded hole.
By adopting the technical scheme, the total contact area of the connecting piece is increased by adopting the polygonal column, the received force is uniform, the stress concentration is small, the large load can be borne, the guidance performance is improved, and the drill bit is convenient to mount, dismount or replace by matching with the threaded hole.
Preferably, a grouting through hole is formed in the drill rod, a grout outlet is formed in one end, close to the pointed end, of the drill rod, the grout outlet is communicated with the grouting through hole, and the grouting through hole penetrates through the drill rod and the polygonal column from the grout outlet.
By adopting the technical scheme, the grouting holes are beneficial to better and uniformly mixing the cement paste with the foundation soil, the stirring uniformity is improved, the pile forming quality is improved, and the requirement of stirring pile forming is met.
Preferably, the pointed tip has a pentagonal cross section.
Through adopting above-mentioned technical scheme, the pentagon tip helps reducing the resistance that sinks, avoids producing to embrace the brill phenomenon as far as possible.
Preferably, the surface of the drill rod is provided with ribs.
Through adopting above-mentioned technical scheme, the rib has played the effect of support, reduces the cracked risk of hollow drill rod in the work progress to increase the practicality and the durability of this drill bit.
In summary, the present application includes at least one of the following beneficial technical effects:
the drill rod and the tip are integrally formed, so that the whole drill bit has high strength and high impact resistance, the cost can be saved to a certain extent, meanwhile, the blades are additionally arranged on the drill bit, so that the construction efficiency of the drill bit is improved, the uniform stirring is facilitated, the construction cost is reduced, meanwhile, the wear resistance of the drill bit is improved by the drill teeth, the frequent replacement of the drill bit is avoided as much as possible, the maintenance frequency is reduced, and the service life of the drill bit is prolonged;
the fins are arranged into a spiral downward structure, so that the drill bit has a tendency of cutting soil and drilling downwards when rotating, the sinking resistance is reduced, the phenomenon of holding the drill is avoided as much as possible, and the discharge of dense gravels after drilling is facilitated, so that the construction efficiency is improved;
the connecting piece adopts the polygon post to make the total area of contact of connecting piece increase, and the received force is comparatively even, and stress concentration is less, can bear great load, increases the guidance quality simultaneously, and the cooperation screw hole makes the drill bit be convenient for install and dismantle or change.
Drawings
FIG. 1 is a schematic view of the overall structure in embodiment 1 of the present application;
FIG. 2 is a sectional view of the entire structure in embodiment 1 of the present application;
FIG. 3 is a schematic view of the overall structure in embodiment 2 of the present application;
description of reference numerals: 1. a drill stem; 11. a connecting member; 111. a threaded hole; 12. grouting the through hole; 13. a slurry outlet; 14. a rib; 2. a tip; 3. a paddle; 31. a fin; 32. drilling teeth; 33. and a reinforcing block.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses cement mixing stake machine drill bit suitable for closely knit thick sand layer.
Example 1:
referring to fig. 1, a cement stirring stake machine drill bit suitable for closely knit thick sand layer, including drilling rod 1, tip 2 and paddle 3, 2 fixed connection in the one end of drilling rod 1 of tip, tip 2 adopts the integrated into one piece structure with drilling rod 1, make the drill bit whole have high strength and high shock resistance, can practice thrift the cost to a certain extent, in this embodiment, the transversal pentagon of personally submitting of tip 2, it is concrete, tip 2 is the setting of symmetrical pentagon, pentagon tip 2 helps reducing the resistance that sinks, avoid producing to the greatest extent and embrace the brill phenomenon, tip 2 top orientation keep away from one side of drilling rod 1 and top and drilling rod 1 axis on same straight line, tip 2's base length is greater than drilling rod 1's diameter, the half that tip 2 is high is connected with drilling rod 1.
Referring to fig. 1 and 2, the drill rod 1 is provided with a connecting piece 11 at one end far away from the tip 2, the cross-sectional shape of the connecting piece 11 is polygonal, in this embodiment, the number of polygons is six, one end of a polygonal column is welded with the drill rod 1, each side of the other end is provided with a threaded hole 111, the connecting piece 11 increases the total contact area of the connecting piece 11 by adopting the polygonal column, the receiving force is uniform, the stress concentration is small, the larger load can be borne, the guidance performance is increased, and the drill bit is convenient to mount, dismount or replace by matching with the threaded hole 111. Referring to fig. 2, a grouting through hole 12 is formed in a drill rod 1, a grout outlet 13 is formed in one end, close to a tip 2, of the drill rod 1, specifically, the grout outlet 13 penetrates through the drill rod 1, the grout outlet 13 is communicated with the grouting through hole 12, the grout outlet 13 is located on one side of the tip 2, and the grouting holes are utilized to be beneficial to enabling cement slurry to be well mixed with foundation soil, so that the stirring uniformity is improved, the pile forming quality is improved, and the requirement of stirring pile forming is met.
Referring to fig. 1, the blade 3 includes a wing 31 and a drill tooth 32, one end of the wing 31 is fixedly connected to the middle surface of the drill rod 1, and the drill tooth 32 is fixed to the other end of the wing 31, specifically, the wing 31 and the drill rod 1 and the wing 31 and the drill tooth 32 are welded together, and the welding method is simple in manufacture and convenient to process, and can be completed on the construction site, thereby saving the cost. Wherein, the material of fin 31 chooses cast iron for use, and the material of brill tooth 32 chooses high strength manganese steel alloy for use, and brill tooth 32 has increased the wear resistance of drill bit and has avoided frequent change of drill bit and has reduced the maintenance number of times as far as possible to increase the life of drill bit. In this embodiment, the quantity of paddle 3 is two, can be three or four in other embodiments, makes the drill bit improve the efficiency of construction through increasing paddle 3, helps stirring to reduce construction cost. The positions where the drilling teeth 32 and the fins 31 are connected are provided with reinforcing blocks 33, specifically, the reinforcing blocks 33 are symmetrically arranged on two sides of the fins 31 and are mutually combined with the fins 31 and the drilling teeth 32 through welding, the connecting area between the drilling teeth 32 and the fins 31 is increased through the reinforcing blocks 33, the strength and the shock resistance of the blade 3 are improved, and the drilling teeth 32 and the fins 31 are prevented from being deviated to the greatest extent to influence the construction efficiency.
In this embodiment, fin 31 is spiral downward setting, and is concrete, and the scope of spiral is between 60 to 100, adopts 80 in this embodiment, has the trend of cutting the soil and boring down when making the drill bit rotatory through setting up spiral downward fin 31, helps reducing the resistance of sinking, avoids producing to embrace and bores the phenomenon as far as possible, helps the discharge to the closely knit grit of brill back simultaneously to improve the efficiency of construction.
The implementation principle of the embodiment 1 is as follows: before the operation of cement mixing stake machine, the drill bit passes through connecting piece 11 and inserts in the cement mixing stake machine even axle, bolt threaded connection screw hole 111, realize fixed drill bit, during the operation of cement mixing stake machine, drill bit direction of rotation refers to figure 1, fin 31 through spiral downward structure, have the trend of cutting the soil and drilling down when making the drill bit rotatory, help reducing the resistance of sinking, avoid producing to embrace the brill phenomenon as far as possible, help the discharge to the closely knit grit of brill back simultaneously, thereby improve the efficiency of construction.
Example 2:
referring to fig. 3, the present embodiment is different from embodiment 1 in that the surface of the drill rod 1 is provided with 8 ribs 14, the length of the ribs 14 is the same as that of the drill rod 1, and the ribs 14 play a role of supporting, so that the risk of breakage of the hollow drill rod 1 during construction is reduced, and the practicability and durability of the drill bit are increased.
The implementation principle of the embodiment 2 is different from that of the embodiment 1 in that, referring to fig. 3, ribs 14 are added to the surface of the drill rod 1 of the embodiment 2, so that the strength and the high impact resistance of the drill rod 1 are further improved.
The above are all preferred embodiments of the present application, and the present embodiment is only explained for the present application, and the protection scope of the present application is not limited by this, 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 (8)
1. The utility model provides a cement stirring stake machine drill bit suitable for closely knit thick sand layer, a serial communication port, including drilling rod (1) and tip (2), tip (2) are fixed in the one end of drilling rod (1), drilling rod (1) is kept away from the one end of tip (2) is provided with connecting piece (11), drilling rod (1) and tip (2) are the integrated into one piece structure.
2. The cement mixing pile machine drill bit suitable for the dense thick sand layer is characterized by further comprising a blade (3), wherein the blade (3) comprises a wing piece (31) and a drill tooth (32), one end of the wing piece (31) is fixed on the drill rod (1), and the drill tooth (32) is fixed on the other end of the wing piece (31).
3. The drill bit of the cement mixing pile machine suitable for the dense thick sand layer is characterized in that the fins (31) are arranged downwards in a spiral mode.
4. A cement mixing pile driver drill bit suitable for dense thick sand layers according to claim 2 or 3, characterized in that the connecting ends of the drilling teeth (32) and the fins (31) are provided with reinforcing blocks (33).
5. The cement mixing pile machine drill bit suitable for the dense thick sand layer is characterized in that the connecting piece (11) is a polygonal column, one end of the polygonal column is connected with the drill rod (1), and the other end of the polygonal column is provided with a threaded hole (111).
6. The cement mixing pile machine drill bit suitable for the dense thick sand layer is characterized in that a grouting through hole (12) is formed in the drill rod (1), a grout outlet hole (13) is formed in one end, close to the pointed end (2), of the drill rod (1), the grout outlet hole (13) is communicated with the grouting through hole (12), and the grouting through hole (12) penetrates through the drill rod (1) and the polygonal column from the grout outlet hole (13).
7. The cement mixing pile machine drill bit suitable for the dense thick sand layer is characterized in that the cross section of the pointed head (2) is pentagonal.
8. A cement mixing pile driver drill bit suitable for dense thick sand layers according to claim 1 is characterized in that the surface of the drill rod (1) is provided with ribs (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123120469.3U CN216305832U (en) | 2021-12-11 | 2021-12-11 | Cement mixing stake machine drill bit suitable for closely knit thick sand layer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123120469.3U CN216305832U (en) | 2021-12-11 | 2021-12-11 | Cement mixing stake machine drill bit suitable for closely knit thick sand layer |
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| CN216305832U true CN216305832U (en) | 2022-04-15 |
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| CN202123120469.3U Active CN216305832U (en) | 2021-12-11 | 2021-12-11 | Cement mixing stake machine drill bit suitable for closely knit thick sand layer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117404016A (en) * | 2023-10-31 | 2024-01-16 | 河北省水利工程局集团有限公司 | Construction method of drilling device for multiple cement-soil mixing piles |
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2021
- 2021-12-11 CN CN202123120469.3U patent/CN216305832U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117404016A (en) * | 2023-10-31 | 2024-01-16 | 河北省水利工程局集团有限公司 | Construction method of drilling device for multiple cement-soil mixing piles |
| CN117404016B (en) * | 2023-10-31 | 2024-03-19 | 河北省水利工程局集团有限公司 | Construction method of drilling device for multiple cement-soil mixing piles |
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