CN201810207U - Rotary excavation drilling machine and rotary excavation drilling tool thereof - Google Patents
Rotary excavation drilling machine and rotary excavation drilling tool thereof Download PDFInfo
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- CN201810207U CN201810207U CN2010205513612U CN201020551361U CN201810207U CN 201810207 U CN201810207 U CN 201810207U CN 2010205513612 U CN2010205513612 U CN 2010205513612U CN 201020551361 U CN201020551361 U CN 201020551361U CN 201810207 U CN201810207 U CN 201810207U
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Abstract
The utility model discloses a rotary excavation drilling tool, comprising a rotary excavation drilling hopper and further comprising a cylinder drill which is fixedly connected with the rotary excavation drilling hopper; an axis of the cylinder drill is coincided with that of the rotary excavation drilling hopper; and the cutting surface of a drilling bit of the rotary excavation drilling hopper is coincided or higher than that of the drilling bit of the cylinder drill. When rotary excavation drilling tool works, the cylinder drill drills firstly, a ring-shaped groove is opened on a construction surface; and rock and soil in the ring-shaped groove are separated at an external rock layer, then the rotary excavation drilling hopper follows, and the rock and the soil in the ring-shaped groove are wholly drilled and removed. The cylinder drill is added on the rotary excavation drilling hopper so as to be a part of the rotary excavation drilling hopper, and the reasonable combination increases the axial length of the rotary excavation drilling tool, thus enhancing the guidance of the drilling tool; in addition, the drilling of the cylinder drill also leads the rock and the soil in the ring-shaped groove to be not influenced by the external rock layer, therefore, the deviation of the drilling bit caused by holes of the rock layer and the like is effectively avoided, and the generation of inclined holes is avoided. The utility model also discloses a rotary excavation drilling machine comprising the rotary excavation drilling tool.
Description
Technical field
The utility model relates to technical field of engineering machinery, relates in particular to a kind ofly to be used for revolving of rotary drilling rig and to dig drilling tool.In addition, the utility model also relates to a kind of above-mentioned rotary drilling rig that digs drilling tool that revolves that comprises.
Background technology
Flourish along with China's infrastructure construction and construction technology thereof, rotary drilling rig has been widely used in the construction of Foundation Design.
In the construction of Foundation Design, need be more and more in the situation of karst strata construction.Construction at karst strata mainly was to utilize Churn drill to creep in the past, but was subjected to the influence of the special construction of karst strata, was easy to cause in work progress, and the drilling tool depart causes the generation of inclined hole phenomenon.
At the problems referred to above, in the prior art, when karst strata was constructed, in case the phenomenon of inclined hole occurs, the solution of taking mainly was: backfill slabstone, perfusion weak concrete, the full casing of employing even two casing and minimizing stroke etc.But said method just after inclined hole produces, is taked back work so that eliminate the negative effects that inclined hole brings, and can not effectively prevent the generation of inclined hole, thereby cause the back work amount in the work progress bigger, and construction working efficient is lower.
In recent years, rotary drilling rig is more and more obvious in the efficient and the reliability of the construction of various stratum, rotary drilling rig shared ratio in the construction of Foundation Design is increasing, but, be subjected to the influence of karst strata, also there be not at present the successful case of rotary drilling rig in the karst strata construction, fewer in the construction experience on this stratum.
Because drilling tool is one of critical component of rotary drilling rig, can whether drilling tool structure be excellent, determined rig give full play to usefulness.Therefore, can rotary drilling rig be applied to the construction of karst strata, depends primarily on drilling tool, at the particularity of karst strata, needs to be equipped with the drilling tool that is suitable for this stratum, to satisfy construction requirement.
Therefore, how improving the drilling tool structure of rotary drilling rig, make rotary drilling rig can be applied to the construction of karst strata, prevent the generation of inclined hole phenomenon, is the present technical issues that need to address of those skilled in the art.
The utility model content
The utility model provides a kind of revolving to dig drilling tool, and this revolves and digs the inclined hole problem that drilling tool can solve generation in the karst strata construction effectively, improves efficiency of construction.The utility model also provides a kind of above-mentioned rotary drilling rig that digs drilling tool that revolves that comprises.
For solving the problems of the technologies described above, drilling tool is dug in revolving that the utility model provides, and comprises rotary drilling digger, comprises that also the tube of fixedlying connected with described rotary drilling digger bores, the axis that described tube bores and the dead in line of described rotary drilling digger; And the cut face of the drill bit of described rotary drilling digger coincides with or is higher than the cut face of the drill bit of described tube brill.
Preferably, also comprise guide strip, the upper end of described guide strip is connected in the link of described rotary drilling digger, and its lower end is connected in the top board of described rotary drilling digger, and the angle of the axis of the tangent line of described guide strip and described rotary drilling digger is spent less than 90 greater than 0 degree.
Preferably, also comprise reinforcing rib, the first side wall of described reinforcing rib is fixedlyed connected with the sidewall of described link, and second sidewall of described reinforcing rib is fixedlyed connected with described guide strip, and the 3rd sidewall of described reinforcing rib is fixedlyed connected with the top board of described rotary drilling digger.
Preferably, described guide strip is the cambered plate of surface plate or evagination.
Preferably, the number of described reinforcing rib and described guide strip is a plurality of, and circumferentially evenly being provided with along described rotary drilling digger.
Preferably, described guide strip is fixedlyed connected with at least two adjacent described second sidewalls.
Preferably, described rotary drilling digger is that embedding rock Double bottom drags for sand hopper.
Preferably, the top that described tube bores is provided with the corresponding prolongation sheet of sand inlet that drags for sand hopper with described embedding rock Double bottom, and described prolongation sheet passes described sand inlet fixedlys connected with the sidewall that described embedding rock Double bottom drags for sand hopper.
Preferably, described tube bores and is welded in described rotary drilling digger.
The utility model also provides a kind of rotary drilling rig, comprises revolving digging drilling tool and digging the drilling rod that drilling tool is connected with described revolving, and describedly revolves that to dig drilling tool be that above-described revolving dug drilling tool.
Drilling tool is dug in revolving that the utility model provides, and adds fitted tube and bore on rotary drilling digger, makes tube be drilled to a part into rotary drilling digger.Dig drilling tool when work when revolving, tube bores and creeps into earlier, opens an annular groove earlier in working face, and rotary drilling digger follow-up subsequently removes the Rock and Soil Drilling that annular groove surrounded, and tube bores and rotary drilling digger continues to creep into, and realization is to the cut of working face.Because the cut face of the drill bit of rotary drilling digger coincides with or is higher than the cut face of the drill bit of described tube brill, make rotary drilling rig in work progress, can utilize tube to be drilled in working face and open an annular groove, thereby the ground in the annular groove cuts off in outside rock stratum, be not subjected to the influence of outside rock stratum, utilize rotary drilling digger that annular groove is removed with whole the boring of interior ground again, thereby avoided having avoided the generation of inclined hole owing to rock stratum hole, the unequal drill bit off normal that causes of formation hardness; Further, when the cut face of the drill bit of rotary drilling digger was higher than the cut face of the drill bit that described tube bores, tube bores had increased the axial length of rotary drilling digger, thereby has strengthened the guidance quality of drilling tool, has avoided the generation of inclined hole from another point of view.。
In a kind of preferred implementation, the utility model provides revolves and digs drilling tool and also comprise guide strip, the upper end of guide strip is connected in the link of rotary drilling digger, its lower end is connected in the top board of rotary drilling digger, and less than 90 degree, promptly the plate face shape of guide strip is seamlessly transitted to the lower end by the upper end angle of the tangent line of guide strip and the axis of rotary drilling digger gradually greater than 0 degree.Dig drilling tool from boring when carrying when revolving, ground in the plate face of guide strip and borehole sidewall or the boring contacts, because the plate face shape of guide strip is level and smooth, make it can comply with the tendency of boring and the complexity of solution cavity well, make to revolve and dig drilling tool and carry on can be smoothly, thereby prevented the generation of bit freezing.
Description of drawings
Fig. 1 is that the master who digs a kind of specific embodiment of drilling tool of revolving that the utility model provides looks schematic diagram;
Fig. 2 be the utility model provide revolve the elevational schematic view of digging a kind of specific embodiment of drilling tool;
Fig. 3 is that revolving of providing of the utility model dug the master that embedding rock Double bottom in a kind of specific embodiment of drilling tool drags for sand hopper and looked schematic diagram;
Fig. 4 is that revolving of providing of the utility model dug the elevational schematic view that embedding rock Double bottom drags for sand hopper in a kind of specific embodiment of drilling tool;
Fig. 5 is that the master who digs tube brill in a kind of specific embodiment of drilling tool of revolving that the utility model provides looks schematic diagram;
Fig. 6 is that revolving of providing of the utility model dug the elevational schematic view that tube bores in a kind of specific embodiment of drilling tool;
Fig. 7 is that the master who digs guide strip in a kind of specific embodiment of drilling tool of revolving that the utility model provides looks schematic diagram;
Fig. 8 be the utility model provide revolve the schematic top plan view of digging guide strip in a kind of specific embodiment of drilling tool.
The specific embodiment
Core of the present utility model provides a kind of revolving and digs drilling tool, and this revolves and digs the construction that drilling tool can be applied to karst strata, avoids the generation of inclined hole.Another core of the present utility model provides a kind of above-mentioned rotary drilling rig that digs drilling tool that revolves that comprises.
In order to make those skilled in the art understand the utility model scheme better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is that the master who digs a kind of specific embodiment of drilling tool of revolving that the utility model provides looks schematic diagram, Fig. 2 be the utility model provide revolve the elevational schematic view of digging a kind of specific embodiment of drilling tool.
In a kind of specific embodiment, provided by the utility model revolving dug drilling tool and comprised that rotary drilling digger 1 and tube bore 2, and tube bores 2 fixedlys connected the axis of tube brill 2 and the dead in line of rotary drilling digger 1 with rotary drilling digger 1; And the cut face of the drill bit of rotary drilling digger 1 coincides with or is higher than the cut face of the drill bit of tube brill 2." cut face " as herein described is meant the end of drill bit perpendicular to revolving the plane of digging tool axis, and touch at first to working face on this plane.
Please refer to Fig. 3 and Fig. 4, Fig. 3 is that revolving of providing of the utility model dug the master that embedding rock Double bottom in a kind of specific embodiment of drilling tool drags for sand hopper and looked schematic diagram, and Fig. 4 is that revolving of providing of the utility model dug the elevational schematic view that embedding rock Double bottom drags for sand hopper in a kind of specific embodiment of drilling tool.
Embedding rock Double bottom drags for sand hopper and mainly comprises the brill end 11, drill body 12, bucket top 13 and release mechanism 14.Bore the end 11, drill body 12 and bucket top 13 and be connected to form an integral body in turn.The brill end 11, can be provided with rotation base plate 111, and rotation base plate 111 is provided with first drill bit 112 and closeable sand inlet 113, and the drill bit of rotary drilling digger 1 drags at embedding rock Double bottom and is specially first drill bit 112 in the sand hopper.Release mechanism 14 is arranged on the drill body 12, is used to limit the different operating position of rotation base plate 111.When embedding rock Double bottom drags for sand hopper work, rotation base plate 111 is closed, release mechanism 14 locks it on the drill body 12, when first drill bit 112 creeps into, sand inlet 113 is in opening, the ground of abolishing enters in the drill body 12 by sand inlet 113, when ground reaches a certain amount of in the drill body 12, close sand inlet 113, whole embedding rock Double bottom is dragged for sand hopper from boring, take out,, will rotate base plate 111 and open by release mechanism 14 releases, ground is discharged from drill body 12, the work of fetching earth of the brill soil of finishing a circulation.
Please refer to Fig. 5 and Fig. 6, Fig. 5 is that revolving of providing of the utility model dug the master that tube bores in a kind of specific embodiment of drilling tool and looked schematic diagram, and Fig. 6 is that revolving of providing of the utility model dug the elevational schematic view that tube bores in a kind of specific embodiment of drilling tool.
Tube brill 2 is usually designed to has certain thickness torus, and the torus bottom is provided with some drill bits, and the drill bit with tube brill 2 is called second drill bit 21 for sake of convenience.This second drill bit 21 can evenly distribute along the torus bottom is circumferential, can make tube bore 2 under equally distributed situation and carry evenly when creeping into, and helps tube and bores a guide-localization of 2.Tube bores 2 tops and is used for being connected with the bottom of rotary drilling digger 1, the particular location that connects need decide according to the concrete structure of rotary drilling digger 1 bottom, can both freely rotate with the drill bit that guarantees rotary drilling digger 1 (drag for be specially first drill bit 112 in the sand hopper at embedding rock Double bottom) and second drill bit 21 on the tube brill 2 to be as the criterion.
For embedding rock Double bottom dragged for sand hopper, tube bored 2 and is fixedly connected on the rotation base plate 111.Tube bores the edge that 2 tops can be fixedly connected on rotation base plate 111, tube can certainly be bored on the lateral wall that 2 inside wall is fixedly connected on rotation base plate 111, under the situation that guarantees first drill bit 112 and 21 mutually noninterferes of second drill bit, can select any other positions that are suitable for connecting.
The axis of tube brill 2 and the dead in line of rotary drilling digger 1 are to guarantee both coaxial rotation.Drag in the sand hopper at embedding rock Double bottom, be specially the axis of tube brill 2 and the dead in line that embedding rock Double bottom drags for sand hopper.Stretch on the direction vertical, promptly on axis direction, the cut face of first drill bit 112 is higher than the cut face that tube bores second drill bit 21 on 2, perhaps the two-section face overlaps, and is provided with like this to guarantee that second drill bit 21 contacts working face earlier or guarantees that at least second drill bit 21 contacts working face simultaneously with first drill bit 112 when work.
Be higher than at the cut face of first drill bit 112 under the situation of cut face of second drill bit 21, dig drilling tool when work when revolving, the base plate 111 of locking rotation earlier starts to revolve then and digs drilling tool, when creeping into, second drill bit 21 creeps into earlier, opens an annular groove earlier in working face, first drill bit, 112 follow-ups subsequently, the Rock and Soil Drilling of surrounding in the annular groove is removed, and by sand inlet 113 ground is packed in the drill body 12, second drill bit 21 and first drill bit 112 continue to creep into, and realize the cut to working face.When the ground in the drill body 12 run up to a certain amount of after, will revolve and dig drilling tool lifting and go out hell, move to the slag dumping place, open rotation base plate 111, ground is discharged outside the drill body 12 under the effect of self gravitation.Locking rotation base plate 111 then will revolve and dig drilling tool and transfer working face to the boring, and creeping into of a beginning new round so moves in circles, and constantly fetches earth and unloads soil, until creeping into to desired depth.In this setup, second drill bit 21 and first drill bit 112 can start simultaneously, and perhaps second drill bit 21 starts prior to first drill bit 112.
When the cut face of first drill bit 112 overlaps with the cut face of second drill bit 21, first drill bit 112 contacts working face simultaneously with second drill bit 21, first drill bit 112 and second drill bit 21 start simultaneously, creep into jointly, second drill bit 21 creeps into the formation annular groove in the periphery, when carrying out guide-localization, first drill bit 112 is abolished ground in the annulus boring.
Tube is bored 2 be fixedly connected on the bottom that embedding rock Double bottom drags for sand hopper, make whole drill body 12 parts of digging drilling tool of revolving extend, increased and revolved the axial length that digs drilling tool, thereby strengthened the guidance quality of drilling tool, make to revolve and dig the construction that drilling tool can adapt to solution cavity well, the whole in addition weight of digging drilling tool of revolving also increases the weight of to some extent, helps passing through creeping into of Upper Plate of Karst Cave hard formation.
In addition, tube is drilled in when creeping into, and opens an annular groove in working face, makes the interior ground of annular groove cut off the ground outside annular groove, whole the boring of ground in the annular groove can be removed, avoid owing to rock stratum hole, the unequal drill bit off normal that causes of hardness; Tube is drilled in when creeping into the annular groove that forms, and is in and revolves the peripheral part that digs drilling tool, and this revolves the effect that drilling tool also can play guide-localization of digging to whole.
For the rotary drilling digger that rotation base plate 111 is not set, tube brill 2 can be fixedly connected on the lateral wall of rotary drilling digger 1, also can on rotary drilling digger 1, bracing or strutting arrangement be set, tube is bored 2 be fixedly connected on this bracing or strutting arrangement, for example, several bracing frames can be set on rotary drilling digger 1, this bracing frame is that the center of circle is along circumferentially evenly distributing with the rotating shaft of rotary drilling digger 1, the outer end of this bracing frame can be fixedly connected on tube and bore 2 sidewall, also can be fixedly connected on tube and bore 2 top end face.
Please refer to Fig. 7 and Fig. 8, Fig. 7 is that the master who digs guide strip in a kind of specific embodiment of drilling tool of revolving that the utility model provides looks schematic diagram, Fig. 8 be the utility model provide revolve the schematic top plan view of digging guide strip in a kind of specific embodiment of drilling tool.
In a kind of specific embodiment, the utility model can also be provided with guide strip 134 on bucket top 13, the upper end of guide strip 134 is connected in the link 132 on the bucket top 13, link is to revolve to dig the parts that drilling tool is connected with drilling rod, link 132 is arranged on usually and revolves the top of digging drilling tool, the lower end of guide strip 134 can be connected in the top board 131 on bucket top 13, the setting of guide strip 134 also needs to meet some requirements, be the angle of axis of the tangent line of guide strip 134 and rotary drilling digger 1 greater than 0 degree less than 90 degree, seamlessly transit gradually to the lower end by the upper end with this plate face shape that guarantees guide strip 134.
Particularly, the angle of the axis of the tangent line of guide strip 134 as herein described and rotary drilling digger 1 is meant less than 90 degree greater than 0 degree, the angle of the tangent line of the part except that the tie point of guide strip 134 and link 132 and top board 131 and the axis of rotary drilling digger 1 is between 0 degree and 90 degree, to guarantee when rotary drilling digger 1 is carried from boring, motion for rotary drilling digger 1 provides guide effect.
Dig drilling tool from boring when carrying when revolving, ground in the plate face of guide strip 134 and borehole sidewall or the boring contacts, because the plate face shape of guide strip 134 is level and smooth, make it can comply with the tendency of boring and the complexity of solution cavity well, make to revolve and dig drilling tool and carry on can be smoothly, thereby prevented the generation of bit freezing.
Be provided with under the situation of requirement satisfied, guide strip 134 can be wholely set also can the split setting.Under situation about being wholely set, the shape of guide strip 134 can be the landing shape that extends out gradually from top to bottom, also can be truncated conical shape or hemisphere face shape.Guide strip 134 with the hemisphere face shape is an example, can connecting through hole be set at the top center place of guide strip 134, be fixed together by bolt and link 132, and this setup, simple in structure, easy for installation.
Can on the basis of existing reinforcing rib 133, improve the mode that the guide strip 134 that utilizes existing reinforcing rib 133 to be provided with can adopt split to be provided with.Guide strip 134 numbers of split setting are a plurality of, each guide strip 134 is all fixedlyed connected with reinforcing rib 133, and can not interconnect between each guide strip 134, guide strip 134 can be corresponding one by one with existing reinforcing rib 133, be each guide strip 134 corresponding reinforcing rib 133, guide strip 134 directly is connected on the existing reinforcing rib 133; Also can on existing basis, set up reinforcing rib 133, make at least two reinforcing ribs of each guide strip 134 correspondence 133, be provided with like this, can strengthen the supporting role of 133 pairs of guide strips 134 of reinforcing rib, make guide strip 134 can not cause distortion because of the reasons such as extruding of rock stratum, the plate face that can guarantee guide strip 134 better keeps the trend seamlessly transit, and then can play guide effect better.Guide strip 134 can be provided with and can make guide strip 134 carryings evenly like this along circumferentially evenly being provided with of rotary drilling digger 1, and helps keeping the extraction direction of being scheduled to when boring carrying, and then can avoid the generation of bit freezing better; The guide strip 134 of She Zhiing like this, each guide strip 134 corresponding reinforcing rib 133 also can corresponding polylith reinforcing rib 133.
Under the situation that reinforcing rib 133 is set, guide strip 134 also can adopt the mode that is wholely set, the guide strip 134 that employing is wholely set is with the difference of the guide strip 134 that adopts the split setting, employing is wholely set, interconnect between each guide strip 134, make guide strip 134 become a global facility; And in the guide strip 134 that split is provided with, each guide strip 134 all is independently parts, and each guide strip 134 is connected in bucket top 13 respectively independently, and can not connect mutually between each guide strip 134.
Dig drilling tool except above-described revolving, the utility model also provides a kind of rotary drilling rig, comprises that above-described revolving dig drilling tool, and this revolves and digs drilling tool and be connected in drilling rod, need to prove that the structure of these other parts of rotary drilling rig please refer to prior art, this paper repeats no more.
The rotary drilling rig that the utility model provides and revolve and dig drilling tool, be specially adapted to the karst strata construction, but be not limited thereto, well imagine, for rotary drilling rig that is applicable to the karst strata that difficulty of construction is big and drilling tool thereof, it also goes for the less relatively stratum of other difficulty of construction.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. one kind revolves and digs drilling tool, comprises rotary drilling digger (1), it is characterized in that, comprises that also the tube of fixedlying connected with described rotary drilling digger (1) bores (2), and described tube bores the axis of (2) and the dead in line of described rotary drilling digger (1); And the cut face of the drill bit of described rotary drilling digger (1) coincides with or is higher than the cut face of the drill bit of described tube brill (2).
2. according to claim 1 revolving dug drilling tool, it is characterized in that, also comprise guide strip (134), the upper end of described guide strip (134) is connected in the link (132) of described rotary drilling digger (1), its lower end is connected in the top board (131) of described rotary drilling digger (1), and the angle of the axis of the tangent line of described guide strip (134) and described rotary drilling digger (1) is spent less than 90 greater than 0 degree.
3. according to claim 2 revolving dug drilling tool, it is characterized in that, also comprise reinforcing rib (133), the first side wall (1331) of described reinforcing rib (133) is fixedlyed connected with the sidewall of described link (132), second sidewall (1332) of described reinforcing rib (133) is fixedlyed connected with described guide strip (134), and the 3rd sidewall (1332) of described reinforcing rib (133) is fixedlyed connected with the top board (131) of described rotary drilling digger.
4. dig drilling tool according to claim 2 or 3 described revolving, it is characterized in that described guide strip (134) is the cambered plate of surface plate or evagination.
5. according to claim 3 revolving dug drilling tool, it is characterized in that, the number of described reinforcing rib (133) and described guide strip (134) is a plurality of, and circumferentially evenly being provided with along described rotary drilling digger (1).
6. according to claim 5 revolving dug drilling tool, it is characterized in that, described guide strip (134) is fixedlyed connected with second sidewall (1332) of two adjacent described reinforcing ribs (133) at least.
7. dig drilling tool according to each described revolving of claim 1 to 3, it is characterized in that described rotary drilling digger (1) drags for sand hopper for embedding rock Double bottom.
8. according to claim 7 revolving dug drilling tool, it is characterized in that, the top that described tube bores (2) is provided with the corresponding prolongation sheet of sand inlet (113) (22) that drags for sand hopper with described embedding rock Double bottom, and described prolongation sheet (22) passes described sand inlet (113) fixedlys connected with the rotation base plate (111) that described embedding rock Double bottom drags for sand hopper.
9. dig drilling tool according to each described revolving of claim 1 to 3, it is characterized in that, described tube bores (2) and is welded in described rotary drilling digger (1).
10. a rotary drilling rig comprises revolving and digs drilling tool and dig the drilling rod that drilling tool is connected with described revolving, and it is characterized in that, describedly revolves that to dig drilling tool be that each described revolving of claim 1 to 9 is dug drilling tool.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010205513612U CN201810207U (en) | 2010-09-29 | 2010-09-29 | Rotary excavation drilling machine and rotary excavation drilling tool thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205513612U CN201810207U (en) | 2010-09-29 | 2010-09-29 | Rotary excavation drilling machine and rotary excavation drilling tool thereof |
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| CN201810207U true CN201810207U (en) | 2011-04-27 |
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| CN102678049A (en) * | 2012-04-24 | 2012-09-19 | 北京市三一重机有限公司 | Circular cutting drill bit, rotary drilling machine and rock drilling method adopting static blasting |
| WO2013063900A1 (en) * | 2011-11-01 | 2013-05-10 | 湖南三一智能控制设备有限公司 | Drilling tool and rotary drilling rig having same |
| CN103195365A (en) * | 2013-03-29 | 2013-07-10 | 徐州徐工基础工程机械有限公司 | Rotary drilling rig hard rock stratum step drilling construction process |
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| WO2013063900A1 (en) * | 2011-11-01 | 2013-05-10 | 湖南三一智能控制设备有限公司 | Drilling tool and rotary drilling rig having same |
| CN102678049A (en) * | 2012-04-24 | 2012-09-19 | 北京市三一重机有限公司 | Circular cutting drill bit, rotary drilling machine and rock drilling method adopting static blasting |
| CN102678049B (en) * | 2012-04-24 | 2015-02-18 | 北京市三一重机有限公司 | Circular cutting drill bit, rotary drilling machine and rock drilling method adopting static blasting |
| CN103195365B (en) * | 2013-03-29 | 2015-08-05 | 徐州徐工基础工程机械有限公司 | A kind of rotary drilling rig ground consisting of hard rock classification drilling construction technique |
| CN103195365A (en) * | 2013-03-29 | 2013-07-10 | 徐州徐工基础工程机械有限公司 | Rotary drilling rig hard rock stratum step drilling construction process |
| CN103375134A (en) * | 2013-06-24 | 2013-10-30 | 北京市三一重机有限公司 | Reducing cylinder drill, reducing method for cylinder drill and rotary drilling rig |
| CN103375134B (en) * | 2013-06-24 | 2016-08-17 | 北京市三一重机有限公司 | Reducing cylinder brill, the reducing method of cylinder brill and rotary drilling rig |
| CN103573186A (en) * | 2013-10-10 | 2014-02-12 | 徐州徐工基础工程机械有限公司 | Drill bit of rotary drilling rig |
| CN103573186B (en) * | 2013-10-10 | 2017-01-18 | 徐州徐工基础工程机械有限公司 | Drill bit of rotary drilling rig |
| CN104481408A (en) * | 2014-12-04 | 2015-04-01 | 中铁二局股份有限公司 | Pick cylindrical drill suitable for construction of super-large diameter swivel-driven piles and application method thereof |
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| CN109138845A (en) * | 2018-10-16 | 2019-01-04 | 朱贵林 | The dedicated drilling tool of rotary drilling rig |
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