CN220849590U - High torque spiral drilling tool - Google Patents
High torque spiral drilling tool Download PDFInfo
- Publication number
- CN220849590U CN220849590U CN202322600327.XU CN202322600327U CN220849590U CN 220849590 U CN220849590 U CN 220849590U CN 202322600327 U CN202322600327 U CN 202322600327U CN 220849590 U CN220849590 U CN 220849590U
- Authority
- CN
- China
- Prior art keywords
- drill rod
- spiral
- connecting pipe
- drilling
- reinforced
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 91
- 239000000956 alloy Substances 0.000 claims abstract description 18
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 18
- 230000003014 reinforcing effect Effects 0.000 claims description 40
- 230000007246 mechanism Effects 0.000 claims description 22
- 241001417527 Pempheridae Species 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000035939 shock Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000004080 punching Methods 0.000 abstract description 3
- 239000002689 soil Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to the technical field of drilling tool structures, in particular to a novel spiral drilling tool which can realize a large-diameter rotary drilling function, expand the application working condition range of a drill rod and prolong the service life of the drill rod, and particularly relates to a large-torque spiral drilling tool. The large-torque spiral drilling tool can realize large-diameter drilling and punching by utilizing the large-diameter spiral blade during drilling, and meanwhile, the drilling effect can be effectively improved by depending on the alloy drill bit at the front end in the drilling process, so that the service life of the spiral drilling tool is effectively prolonged.
Description
Technical Field
The utility model relates to the technical field of drilling tool structures, in particular to a novel spiral drilling tool, which can realize a large-diameter rotary drilling function, expand the application working condition range of a drill rod and prolong the service life of the drill rod, and particularly relates to a high-torque spiral drilling tool.
Background
The drilling tool can be applied to geotechnical engineering drilling construction, and can perform spiral percussion drilling on geological strata, pebble layers, sandy soil layers, soil layers and the like when in operation.
Various types of spiral drilling tools exist in the prior art, for example, a prior art patent with a patent name of bionic non-smooth spiral drilling tool is disclosed in a patent document with a publication number of CN101387187A, and the main structure of the prior art comprises that convex hulls are regularly arranged on blades of a common spiral drilling tool to form a non-smooth surface.
It can be seen that the improvement points of the above patent are mainly that convex hulls are regularly arranged on the blades, so that the effects of difficult clay, extremely remarkable anti-sticking and drag reduction and soil removal rate are achieved, but the structure has the limitation of drilling diameter when drilling is actually carried out, is generally only suitable for small-diameter drilling in the process of drilling, and has shorter service life in the process of long-term drilling.
In addition, in the case of drilling with large diameter and large resistance, the conventional screw drill has a problem of poor connection reliability when being connected to an external driving member.
Therefore, the utility model optimizes and designs the problems of the spiral drilling tool in the prior art, and therefore provides a novel spiral drilling tool which can realize the large-diameter rotary drilling function, expand the application working condition range of the drill rod and prolong the service life of the drill rod, and simultaneously ensure the connection reliability of the novel spiral drilling tool so as to better solve the problems in the prior art.
Disclosure of utility model
The utility model aims to solve one of the technical problems, and adopts the following technical scheme: the high-torque spiral drilling tool comprises a spiral drilling rod, wherein the tail end of the spiral drilling rod is connected with a connector unit at a corresponding position through a connecting mechanism, the connector unit is connected with a connecting seat at the corresponding position, an alloy drill bit is arranged at the front end of the spiral drilling rod, spiral blades are welded and fixed on the outer side wall of the front part of the spiral drilling rod along the circumference of the spiral drilling rod, and the tail end of the connecting seat is used for being connected with an upstream driving unit;
The diameter of the spiral blade is 5-10 times of the outer diameter of the spiral drill rod;
The spiral drill rod adopts a hollow tubular structure, two ends of the spiral drill rod are communicated with the outside, a reinforcing connecting pipe cap is integrally formed and fixed at the tail end of the spiral drill rod, and the reinforcing connecting pipe cap is used for being sleeved on the connector unit and realizing fastening and positioning through the connecting mechanism.
In any of the above aspects, it is preferable that the reinforced connecting cap and the screw rod are integrally formed, the outer diameter of the reinforced connecting cap is larger than the outer diameter of the screw rod, and the wall thickness of the reinforced connecting cap is larger than the wall thickness of the screw rod.
In any of the above aspects, preferably, the connector unit includes a connection main body, a connection square shaft is provided at a front end of the connection main body, a front end of the connection square shaft extends into a square cavity of the reinforced connection pipe cap, and the connection mechanism is mounted on an outer side wall of the reinforced connection pipe cap.
In any of the above solutions, preferably, the connecting mechanism includes a rigid connecting sleeve sleeved on an outer sidewall of the reinforced connecting pipe cap, a distal end of the rigid connecting sleeve is sleeved on an outer sidewall of the stepped shaft of the connecting main body at a rear side of the connecting square shaft, a front end of the rigid connecting sleeve extends to a periphery of the distal outer sidewall of the auger stem, a distal end of the rigid connecting sleeve penetrates through the stepped shaft of the connecting main body at a rear side of the connecting square shaft in a radial direction through a double-end connecting stud, and two ends of the double-end connecting stud extend into corresponding mounting holes on the rigid connecting sleeve respectively and are screwed with corresponding limit locking nuts.
In any of the above solutions, it is preferable that the front end of the rigid connection pipe sleeve is provided with a plurality of reinforcing bolts at intervals along the axial direction thereof, and each reinforcing bolt penetrates through the connection square shaft, the reinforcing connection pipe cap and the rigid connection pipe sleeve at corresponding positions along the radial direction and is fastened by end nuts.
In any of the above embodiments, it is preferable that each of the reinforcing bolts is disposed perpendicular to the stud bolts.
In any of the above schemes, it is preferable that an annular space between the inner side wall of the front end of the rigid connection pipe sleeve and the corresponding outer side wall of the spiral drill pipe and the outer side wall of the reinforced connection pipe cap is sealed and sleeved with a high temperature resistant rubber shock absorbing sleeve.
In any of the above schemes, it is preferable that the front ends of the helical blades extend to the front end of the auger stem and a sweeper is welded and fixed on the working surface of the corresponding helical blade.
In any of the above schemes, preferably, the sweeper is composed of a plurality of alloy protruding columns fixedly welded on the front end face of the spiral drill rod, and the alloy protruding columns are arranged at intervals.
Compared with the prior art, the utility model has the following beneficial effects:
1. The large-torque spiral drilling tool can realize large-diameter drilling and punching by utilizing the large-diameter spiral blade during drilling, and meanwhile, the drilling effect can be effectively improved by depending on the alloy drill bit at the front end in the drilling process, so that the service life of the spiral drilling tool is effectively prolonged.
2. The spiral drill rod adopts the mode of integrally forming the tail end to form the reinforced connecting pipe cap in the process of carrying out large-diameter drilling, so that the structural damage caused by the traditional welding mode is avoided, the structural strength of the whole spiral drill rod is effectively improved, meanwhile, the reinforced connection of the inner layer and the outer layer is realized by means of the matched grafting of the reinforced connecting pipe cap and the connecting main body and the unified reinforcement of the peripheral rigid connecting pipe sleeve, the capability of resisting large torque load of the whole connecting part is effectively ensured, the safety and the firmness of the connecting part during large-diameter drilling are effectively ensured, and the risk of detachment of the connecting part is reduced.
3. The rigid connection pipe sleeve, the connection square shaft, the spiral drill rod and the reinforced connection pipe cap adopt a plurality of groups of connection structures and simultaneously adopt a setting mode that the three-dimensional surfaces are mutually perpendicular when in progress, so that the firmness and the stability of the connection part are effectively ensured, and the torsion resistance of the connection part is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are used in the embodiments will be briefly described below. Like elements or features are generally identified by like reference numerals throughout the drawings. In the drawings, the elements or components are not necessarily drawn to scale.
Fig. 1 is a schematic structural view of the high torque screw drilling tool of the present utility model.
Fig. 2 is a schematic view of a partial internal cross-sectional structure of the high torque helical drilling tool of the present utility model.
Fig. 3 is a schematic view of a partial enlarged structure of fig. 2.
In the figure, 1, a spiral drill rod; 2. a connecting mechanism; 201. a rigid connecting sleeve; 202. a double-end connecting stud; 203. a mounting aperture; 204. limiting and locking the nut; 205. reinforcing bolts; 206. an annular space; 207. high temperature resistant rubber damping sleeve; 3. a connector unit; 301. a connecting body; 302. connecting a square shaft; 303. a square cavity; 4. a connecting seat; 5. alloy drill bit; 6. a helical blade; 7. reinforcing the connecting pipe cap; 8. alloy protruding columns.
Detailed Description
Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model. The specific structure of the utility model is shown in fig. 1-3.
Example 1: the high-torque spiral drilling tool comprises a spiral drilling rod 1, wherein the tail end of the spiral drilling rod 1 is connected with a connector unit 3 at a corresponding position through a connecting mechanism 2, the connector unit 3 is connected with a connecting seat 4 at the corresponding position, an alloy drill bit 5 is arranged at the front end of the spiral drilling rod 1, spiral blades 6 are fixedly welded on the outer side wall of the front part of the spiral drilling rod 1 along the circumference of the spiral drilling rod, and the tail end of the connecting seat 4 is used for being connected with an upstream driving unit;
The diameter of the helical blade 6 is 5-10 times of the outer diameter of the spiral drill rod 1;
The spiral drill rod 1 adopts a hollow tubular structure, two ends of the spiral drill rod are communicated with the outside, a reinforcing connecting pipe cap 7 is integrally formed and fixed at the tail end of the spiral drill rod 1, and the reinforcing connecting pipe cap 7 is used for being sleeved on the connector unit 3 and realizing fastening and positioning through the connecting mechanism 2. In the utility model, when drilling operation is carried out, the stability and the torsion resistance effect of the connecting part of the drilling pitch when the drilling pitch is driven by the connecting main body 301 can be ensured after the external driving device is connected with the spiral drilling tool, the problem of large torsion load in a large-diameter drilling state is solved, and the safety of drilling operation is ensured. The diameter of the helical blade 6 is set to be 5-10 times of the outer diameter of the auger stem 1, effectively enlarging the diameter of the helical blade 6, and effectively realizing the large diameter drilling requirement when drilling.
In any of the above embodiments, it is preferable that the reinforced connecting cap 7 is integrally formed with the auger stem 1, the outer diameter of the reinforced connecting cap 7 is larger than the outer diameter of the auger stem 1, and the wall thickness of the reinforced connecting cap 7 is larger than the wall thickness of the auger stem 1. The reinforced connecting pipe cap 7 and the spiral drill rod 1 are manufactured by adopting integrated forming, so that the integral strength of the whole spiral drill rod 1 structure can be effectively ensured, and the torsion resistance effect of the spiral drill rod during large-diameter drilling is ensured. Meanwhile, the wall thickness of the reinforced connecting pipe cap 7 is thickened to achieve the aim of improving the torsion resistance limit of the reinforced connecting pipe cap in consideration of the strength of the direct connecting part.
In any of the above embodiments, it is preferable that the connector unit 3 includes a connector body 301, a connector square shaft 302 is provided at a front end of the connector body 301, a front end of the connector square shaft 302 extends into a square cavity 303 of the reinforced connector cap 7, and the connecting mechanism 2 is mounted on an outer side wall of the reinforced connector cap 7. The connector unit 3 provided by the utility model is mainly used for connecting the connecting main body 301 and the corresponding spiral drill rod 1 into a whole through the connecting square shaft 302, positioning of a column cavity is finished by means of sleeving the square cavity 303 of the reinforced connecting pipe cap 7 during connection, and reinforcing treatment of the whole connecting part is realized by means of reinforcing connection action of the corresponding connecting mechanism 2 after splicing is finished, so that the connecting effect is effectively ensured.
In any of the above solutions, preferably, the connection mechanism 2 includes a rigid connection sleeve 201 sleeved on the outer sidewall of the reinforced connection pipe cap 7, the end of the rigid connection sleeve 201 is sleeved on the outer sidewall of the stepped shaft 302 of the connection main body 301 at the rear side of the connection square shaft 302, the front end of the rigid connection sleeve 201 extends to the periphery of the outer sidewall of the end of the spiral drill rod 1, the end of the rigid connection sleeve 201 is disposed through the stepped shaft 302 of the connection main body 301 at the rear side of the connection square shaft 302 in the radial direction by a double-end connection stud 202, and two ends of the double-end connection stud 202 extend into corresponding mounting holes 203 on the rigid connection sleeve 201 and are screwed with corresponding limit locking nuts 204. The connecting mechanism 2 mainly uses the sleeving limit of the rigid connecting pipe sleeve 201 to realize preliminary positioning when being connected, and then uses the double-end connecting stud 202 to penetrate through the corresponding position and then locks the limit locking nut 204, so that the aim of rapidly positioning is fulfilled, the stability of connection can be effectively improved by virtue of the double-end connecting stud 202 arranged along the radial direction, and meanwhile, the disassembly according to the needs can be realized.
In any of the above embodiments, it is preferable that the front end of the rigid connection pipe sleeve 201 is provided with a plurality of reinforcing bolts 205 at intervals along the axial direction thereof, and each reinforcing bolt 205 is fastened by end nuts after penetrating through the connection square shaft 302, the reinforcing connection pipe cap 7, and the rigid connection pipe sleeve 201 at corresponding positions in the radial direction. For stability in the connection direction, four reinforcing bolts 205 are added in the length direction of the rigid connection pipe sleeve 201 to realize further reinforcing and positioning of the whole reinforcing bolts 205, the reinforcing connection pipe cap 7 and the spiral drill rod 1, thereby effectively ensuring firm connection.
In any of the above embodiments, it is preferable that each of the reinforcing bolts 205 is disposed perpendicular to the stud 202. The structure design of mutually perpendicular staggering can ensure the firmness when carrying out loaded locking, and effectively ensure the poor self-locking effect formed after the connection of the whole connecting part.
Example 2: the high-torque spiral drilling tool comprises a spiral drilling rod 1, wherein the tail end of the spiral drilling rod 1 is connected with a connector unit 3 at a corresponding position through a connecting mechanism 2, the connector unit 3 is connected with a connecting seat 4 at the corresponding position, an alloy drill bit 5 is arranged at the front end of the spiral drilling rod 1, spiral blades 6 are fixedly welded on the outer side wall of the front part of the spiral drilling rod 1 along the circumference of the spiral drilling rod, and the tail end of the connecting seat 4 is used for being connected with an upstream driving unit;
The diameter of the helical blade 6 is 5-10 times of the outer diameter of the spiral drill rod 1;
The spiral drill rod 1 adopts a hollow tubular structure, two ends of the spiral drill rod are communicated with the outside, a reinforcing connecting pipe cap 7 is integrally formed and fixed at the tail end of the spiral drill rod 1, and the reinforcing connecting pipe cap 7 is used for being sleeved on the connector unit 3 and realizing fastening and positioning through the connecting mechanism 2.
In any of the above embodiments, it is preferable that the reinforced connecting cap 7 is integrally formed with the auger stem 1, the outer diameter of the reinforced connecting cap 7 is larger than the outer diameter of the auger stem 1, and the wall thickness of the reinforced connecting cap 7 is larger than the wall thickness of the auger stem 1.
The reinforced connecting pipe cap 7 and the spiral drill rod 1 are manufactured by adopting integrated forming, so that the integral strength of the whole spiral drill rod 1 structure can be effectively ensured, and the torsion resistance effect of the spiral drill rod during large-diameter drilling is ensured.
Meanwhile, the wall thickness of the reinforced connecting pipe cap 7 is thickened to achieve the aim of improving the torsion resistance limit of the reinforced connecting pipe cap in consideration of the strength of the direct connecting part.
In any of the above embodiments, it is preferable that the connector unit 3 includes a connector body 301, a connector square shaft 302 is provided at a front end of the connector body 301, a front end of the connector square shaft 302 extends into a square cavity 303 of the reinforced connector cap 7, and the connecting mechanism 2 is mounted on an outer side wall of the reinforced connector cap 7.
The connector unit 3 provided by the utility model is mainly used for connecting the connecting main body 301 and the corresponding spiral drill rod 1 into a whole through the connecting square shaft 302, positioning of a column cavity is finished by means of sleeving the square cavity 303 of the reinforced connecting pipe cap 7 during connection, and reinforcing treatment of the whole connecting part is realized by means of reinforcing connection action of the corresponding connecting mechanism 2 after splicing is finished, so that the connecting effect is effectively ensured.
In any of the above solutions, preferably, the connection mechanism 2 includes a rigid connection sleeve 201 sleeved on the outer sidewall of the reinforced connection pipe cap 7, the end of the rigid connection sleeve 201 is sleeved on the outer sidewall of the stepped shaft 302 of the connection main body 301 at the rear side of the connection square shaft 302, the front end of the rigid connection sleeve 201 extends to the periphery of the outer sidewall of the end of the spiral drill rod 1, the end of the rigid connection sleeve 201 is disposed through the stepped shaft 302 of the connection main body 301 at the rear side of the connection square shaft 302 in the radial direction by a double-end connection stud 202, and two ends of the double-end connection stud 202 extend into corresponding mounting holes 203 on the rigid connection sleeve 201 and are screwed with corresponding limit locking nuts 204.
The connecting mechanism 2 mainly uses the sleeving limit of the rigid connecting pipe sleeve 201 to realize preliminary positioning when being connected, and then uses the double-end connecting stud 202 to penetrate through the corresponding position and then locks the limit locking nut 204, so that the aim of rapidly positioning is fulfilled, the stability of connection can be effectively improved by virtue of the double-end connecting stud 202 arranged along the radial direction, and meanwhile, the disassembly according to the needs can be realized.
In any of the above embodiments, it is preferable that the front end of the rigid connection pipe sleeve 201 is provided with a plurality of reinforcing bolts 205 at intervals along the axial direction thereof, and each reinforcing bolt 205 is fastened by end nuts after penetrating through the connection square shaft 302, the reinforcing connection pipe cap 7, and the rigid connection pipe sleeve 201 at corresponding positions in the radial direction.
For stability in the connection direction, four reinforcing bolts 205 are added in the length direction of the rigid connection pipe sleeve 201 to realize further reinforcing and positioning of the whole reinforcing bolts 205, the reinforcing connection pipe cap 7 and the spiral drill rod 1, thereby effectively ensuring firm connection.
In any of the above embodiments, it is preferable that each of the reinforcing bolts 205 is disposed perpendicular to the stud 202.
The structure design of mutually perpendicular staggering can ensure the firmness when carrying out loaded locking, and effectively ensure the poor self-locking effect formed after the connection of the whole connecting part.
In any of the above embodiments, it is preferable that an annular space 206 between the inner side wall of the front end of the rigid connection pipe sleeve 201 and the corresponding outer side wall of the auger stem 1 and the outer side wall of the reinforcing connection pipe cap 7 is sealed and plugged with a high temperature resistant rubber damper sleeve 207.
The main purpose of the high temperature resistant rubber damping sleeve 207 arranged in the gap of the connecting part is to ensure the damping and buffering of the tiny vibration in the connecting process, and further effectively ensure the connecting effect.
In any of the above schemes, it is preferable that the front end of the spiral blade 6 extends to the front end of the spiral drill rod 1 and a sweeper is welded and fixed on the working surface of the corresponding spiral blade 6.
When the sweeper rotates along with the helical blade 6, the rock powder stone blocks and the like at the bottom can be shifted to the periphery when the alloy drill bit 5 is matched for downwards drilling, and the discharging effect of drilling is effectively improved.
In any of the above schemes, it is preferable that the sweeper is composed of a plurality of alloy protruding columns 8 fixedly welded on the front end face of the spiral drill rod 1, and each of the alloy protruding columns 8 is arranged at intervals.
The alloy protruding column 8 can further ensure the structural strength when contacting rock powder and soil layers, and effectively ensure the firmness of the alloy protruding column 8.
The specific working principle is as follows:
When the large-torque spiral drilling tool is used for drilling operation, the stability and the torsion resistance effect of the connecting part of the drilling pitch when the connecting main body 301 is used for transmission can be ensured after the external driving device is used for driving the spiral drilling tool, the problem of large torsion load in a large-diameter drilling state is solved, and the safety of drilling operation is ensured; the diameter of the helical blade 6 is set to be 5-10 times of the outer diameter of the auger stem 1, effectively enlarging the diameter of the helical blade 6, and effectively realizing the large diameter drilling requirement when drilling. The connection body unit 3 is mainly used for connecting the connection main body 301 and the corresponding spiral drill rod 1 into a whole through the connection square shaft 302, positioning of a column cavity is finished by sleeving the square cavity 303 of the reinforced connection pipe cap 7 during connection, reinforcing treatment of the whole connection part is realized by reinforcing connection action of the corresponding connection mechanism 2 after splicing is finished, and connection effect is effectively guaranteed.
In addition, the large-torque spiral drilling tool can realize large-diameter drilling and punching by utilizing the large-diameter spiral blades 6 when drilling, the torque of the spiral drilling tool reaches 5000N.m of large torque, the large-diameter rotary drilling function can be realized, meanwhile, the drilling effect can be effectively improved by means of the alloy drill bit 5 at the front end in the drilling process, and the service life of the spiral drilling tool is effectively prolonged; in the process of large-diameter drilling, the spiral drill rod 1 adopts the mode of integrally forming the tail end to form the reinforced connecting pipe cap 7, so that structural damage caused by a traditional welding mode is avoided, the structural strength of the whole spiral drill rod 1 is effectively improved, meanwhile, the reinforced connection of the inner layer and the outer layer is realized by means of the matched grafting of the reinforced connecting pipe cap 7 and the connecting main body 301 and the unified reinforcement of the peripheral rigid connecting pipe sleeve 201, the large-torque load resistance of the whole connecting part is effectively ensured, the safety and the firmness of the connecting part during large-diameter drilling are effectively ensured, and the risk of detachment of the connecting part is reduced; the rigidity connection pipe sleeve 201, the connection square shaft 302, the spiral drill rod 1 and the reinforced connection pipe cap 7 adopt a plurality of groups of connection structures and simultaneously adopt a setting mode that the three-dimensional surfaces are mutually perpendicular when in progress, so that the firmness and the stability of the connection part are effectively ensured, and the torsion resistance of the connection part is further improved.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions; any alternative modifications or variations to the embodiments of the present utility model will fall within the scope of the present utility model for those skilled in the art.
The present utility model is not described in detail in the present application, and is well known to those skilled in the art.
Claims (9)
1. High-torque spiral drilling tool, its characterized in that: the screw drill comprises a screw drill rod, wherein the tail end of the screw drill rod is connected with a connector unit at a corresponding position through a connecting mechanism, the connector unit is connected with a connecting seat at the corresponding position, an alloy drill bit is arranged at the front end of the screw drill rod, screw blades are welded and fixed on the outer side wall of the front part of the screw drill rod along the circumference of the screw drill rod, and the tail end of the connecting seat is used for being connected with an upstream driving unit;
The diameter of the spiral blade is 5-10 times of the outer diameter of the spiral drill rod;
The spiral drill rod adopts a hollow tubular structure, two ends of the spiral drill rod are communicated with the outside, a reinforcing connecting pipe cap is integrally formed and fixed at the tail end of the spiral drill rod, and the reinforcing connecting pipe cap is used for being sleeved on the connector unit and realizing fastening and positioning through the connecting mechanism.
2. The high torque auger boring tool of claim 1, wherein: the reinforced connecting pipe cap and the spiral drill rod are manufactured in an integrated mode, the outer diameter of the reinforced connecting pipe cap is larger than that of the spiral drill rod, and the wall thickness of the reinforced connecting pipe cap is larger than that of the spiral drill rod.
3. The high torque auger boring tool of claim 2, wherein: the connector unit comprises a connecting main body, a connecting square shaft is arranged at the front end of the connecting main body, the front end of the connecting square shaft extends into a square cavity of the reinforced connecting pipe cap, and the connecting mechanism is arranged on the outer side wall of the reinforced connecting pipe cap.
4. A high torque auger boring tool according to claim 3, wherein: the connecting mechanism comprises a rigid connecting pipe sleeve which is sleeved and mounted on the outer side wall of the reinforced connecting pipe cap, the tail end of the rigid connecting pipe sleeve is sleeved and connected on the outer side wall of the stepped shaft of the connecting main body at the rear side of the connecting square shaft, the front end of the rigid connecting pipe sleeve extends to the periphery of the outer side wall of the tail end of the spiral drill rod, the tail end of the rigid connecting pipe sleeve penetrates through the stepped shaft of the connecting main body at the rear side of the connecting square shaft along the radial direction through a double-end connecting stud, and the two ends of the double-end connecting stud extend into corresponding mounting holes on the rigid connecting pipe sleeve respectively and are in screwed connection with corresponding limit locking nuts.
5. The high torque auger boring tool of claim 4, wherein: the front end of the rigid connection pipe sleeve is provided with a plurality of reinforcing bolts at intervals along the axial direction of the rigid connection pipe sleeve, and each reinforcing bolt penetrates through the connection square shaft, the reinforced connection pipe cap and the rigid connection pipe sleeve at corresponding positions along the radial direction and is fastened through end nuts.
6. The high torque auger boring tool according to claim 5, wherein: each reinforcing bolt is mutually perpendicular to the double-end connecting stud.
7. The high torque auger boring tool according to claim 6, wherein: and a high-temperature-resistant rubber shock absorbing sleeve is sleeved and connected in a sealing manner in an annular space between the inner side wall of the front end of the rigid connecting pipe sleeve and the outer side wall of the corresponding spiral drill rod and the outer side wall of the reinforced connecting pipe cap.
8. The high torque auger boring tool of claim 7, wherein: the front ends of the helical blades extend to the front end of the spiral drill rod, and a sweeper is welded and fixed on the working surface of the corresponding helical blade.
9. The high torque auger boring tool of claim 8, wherein: the sweeper is composed of a plurality of alloy convex columns fixedly welded on the front end face of the spiral drill rod, and the alloy convex columns are arranged at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322600327.XU CN220849590U (en) | 2023-09-25 | 2023-09-25 | High torque spiral drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322600327.XU CN220849590U (en) | 2023-09-25 | 2023-09-25 | High torque spiral drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220849590U true CN220849590U (en) | 2024-04-26 |
Family
ID=90746419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322600327.XU Active CN220849590U (en) | 2023-09-25 | 2023-09-25 | High torque spiral drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220849590U (en) |
-
2023
- 2023-09-25 CN CN202322600327.XU patent/CN220849590U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201297129Y (en) | Automatic well hydraulic pressure vibration reduction bit-feeding device | |
| CN103015894B (en) | Friction and resistance reducing tool with axial crawling function | |
| CN102071681A (en) | Extrusion-expansion device for whole pile long extrusion-expansion bored concrete pile construction and construction method | |
| CN220849590U (en) | High torque spiral drilling tool | |
| CN201818237U (en) | Non-valve impact rotating type power head of hydraulic anchor rod drilling machine | |
| CN108425628B (en) | Multi-bit electric drive combined drilling system | |
| CN205977090U (en) | High -efficient anti screw rod drilling tool that dashes | |
| CN203701971U (en) | Roller bit, roller drilling tool and rotary drilling rig | |
| CN201934033U (en) | Boring tool centralizer for replaceable mining screw rod | |
| CN107989544B (en) | Rock drilling rig | |
| CN107489381B (en) | Overload-proof screw drilling tool | |
| CN207048680U (en) | Reaming while drilling drill bit | |
| CN213869700U (en) | Spiral percussion drill suitable for rock and soil | |
| CN201436365U (en) | Split type rock reamer | |
| CN210714465U (en) | Double dynamical screw thread bored pile rig | |
| CN201031392Y (en) | Extorsion pipe inside spin pile-formation machine | |
| CN111237309A (en) | Novel building expansion bolt and manufacturing, assembling, disassembling and using method thereof | |
| CN205977089U (en) | Screw rod drilling tool that shocks resistance | |
| CN219672588U (en) | Rib drill rod with good slag discharging effect | |
| CN220081323U (en) | Reverse circulation drill bit for sandy pebble layer construction | |
| CN105804671B (en) | A kind of drilling rod Telescopic buffer device of down-the-hole drill gyrator | |
| CN201288514Y (en) | Novel hydraulic presser | |
| CN220580986U (en) | Drilling and protecting integrated machine tool for reinforcing hole wall of soft stratum drilling hole | |
| CN111455991A (en) | Assembled spiral pile foundation and construction method thereof | |
| CN219061563U (en) | Iron roughneck screwing wheel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |