CN111794686B - Well drilling auxiliary tool - Google Patents
Well drilling auxiliary tool Download PDFInfo
- Publication number
- CN111794686B CN111794686B CN202010579377.2A CN202010579377A CN111794686B CN 111794686 B CN111794686 B CN 111794686B CN 202010579377 A CN202010579377 A CN 202010579377A CN 111794686 B CN111794686 B CN 111794686B
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- pipe
- spring
- plumb
- sleeved
- cylinder
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- 238000005553 drilling Methods 0.000 title claims abstract description 64
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 230000001681 protective effect Effects 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 4
- 239000002893 slag Substances 0.000 abstract description 26
- 238000000034 method Methods 0.000 description 9
- 238000007599 discharging Methods 0.000 description 7
- 230000002265 prevention Effects 0.000 description 4
- 210000004907 gland Anatomy 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B12/00—Accessories for drilling tools
- E21B12/06—Mechanical cleaning devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
A well drilling auxiliary tool relates to the technical field of pile foundation engineering and comprises a plumb bob pipe and a support cylinder; the lead hammer pipe is fixedly sleeved with an impact stopping ring, the lead hammer pipe above the impact stopping ring is arranged as a guide column, the lead hammer pipe below the impact stopping ring is connected with a balancing weight, and a spring buffer device is sleeved on the lead hammer pipe between the impact stopping ring and the balancing weight; the spring buffer device comprises a spring barrel sleeved on the plumb pipe, and the support barrel is connected with the spring barrel through a cross swing mechanism; the cross swing mechanism comprises an annular swing beam, the annular swing beam is inwards rotatably connected with the spring barrel through a pin shaft, and the annular swing beam is outwards rotatably connected with the supporting barrel through a pin shaft. The invention can rapidly and reliably remove the drilling slag accumulated in the rotary drilling bit cylinder.
Description
Technical Field
The invention relates to the technical field of pile foundation engineering, in particular to a drilling auxiliary tool.
Background
With the development of modern industry, large diameter geological boreholes are increasingly used and the fields in which these boreholes are used are many, such as: the field of pile foundations, the field of mines (wells for various purposes), the field of sewage treatment (aeration wells), and the like. The existing drilling equipment and drilling process for large-diameter drilling are various, and available equipment includes a rotary drilling rig, a full-section reverse circulation drilling rig, a percussion drilling rig, a diving drilling rig, a common forward circulation rotary drilling rig and the like, wherein the rotary drilling rig and the full-section reverse circulation drilling rig are mostly applied at present. The drilling machines have the characteristics from the aspects of manufacturing cost, applicability, labor intensity and the like, the adopted drilling process is different according to the characteristics and the initial design of the drilling machine, but when the drilling machine is used for drilling large-diameter deep holes, particularly large-diameter hard rocks, the problem of low drilling efficiency generally exists, and the low drilling efficiency of the large-diameter hard rocks becomes a well-known industrial problem in the world at present.
The common rotary drilling rig also has the problem of slag discharging, the slag discharging is generally realized by adopting a method that a left-right continuously-vibrating drill bit makes the drilling slag slide out of a cylinder by means of the self weight of the drilling slag, when the drilling slag is not compacted in the drill bit cylinder or the compaction degree is not high, the slag discharging can be better realized by the method, when the drilling slag is compacted in the drill bit cylinder to a high degree, the slag discharging is difficult to realize smoothly by the method that the drill bit is vibrated left and right, and even under the condition that the drilling slag is seriously compacted due to small diameter of some drill holes, the slag discharging can be realized conveniently and reliably by adopting a cylinder opening-closing drill bit.
Disclosure of Invention
The invention aims to solve the technical problem of providing a drilling auxiliary tool capable of rapidly and reliably discharging drilling slag accumulated in a rotary drilling bit cylinder aiming at the defects of the prior art.
The technical problem to be solved by the invention is realized by the following technical scheme, and the invention relates to a drilling auxiliary tool which is characterized by comprising a plumb bob pipe and a supporting cylinder;
the lead hammer pipe is fixedly sleeved with an impact stopping ring, the lead hammer pipe above the impact stopping ring is arranged as a guide column, the lead hammer pipe below the impact stopping ring is connected with a balancing weight, and a spring buffer device is sleeved on the lead hammer pipe between the impact stopping ring and the balancing weight;
the spring buffer device comprises a spring barrel sleeved on the plumb pipe, a buffer spring is sleeved between the plumb pipe and the spring barrel, an upper limiting mechanism for limiting the upper end of the buffer spring is fixedly arranged on the plumb pipe, and a lower limiting mechanism for limiting the lower end of the buffer spring is fixedly arranged on the spring barrel;
the supporting cylinder is sleeved on the outer side of the spring cylinder and accommodates the balancing weight therein, and the supporting cylinder and the spring cylinder are connected through a cross swing mechanism;
the cross swing mechanism comprises an annular swing beam, four quartered pin holes are formed in the annular swing beam, two halved pin holes are formed in the spring cylinder, two halved pin holes are formed in the supporting cylinder, one pair of pin holes of the annular swing beam is connected with the two pin holes of the spring cylinder in a rotating mode inwards, and the other pair of pin holes of the annular swing beam is connected with the two pin holes of the supporting cylinder in a rotating mode outwards through pin shafts.
The technical problem to be solved by the present invention can be further solved by the following technical solutions, in the above-mentioned drilling auxiliary tool: a protective umbrella is arranged above the annular oscillating beam, is sleeved on the plumb pipe and covers the supporting cylinder and the annular oscillating beam.
The technical problem to be solved by the present invention can be further solved by the following technical solutions, in the above-mentioned drilling auxiliary tool: the lead hammer pipe comprises a lead hammer outer pipe and a lead hammer inner pipe which are fixedly sleeved, the impact preventing ring is arranged on the lead hammer outer pipe, and the balancing weight is arranged on the lead hammer inner pipe;
the spring cylinder is sleeved on the outer plumb pipe, and the buffer spring is sleeved on the inner plumb pipe; the upper limiting mechanism is an upper limiting baffle ring fixedly sleeved on the plumb inner tube, the lower limiting mechanism is a lower limiting baffle ring sleeved on the plumb inner tube, and the outer ring of the lower limiting baffle ring is fixedly connected with the inner wall of the spring barrel;
the lower end of the plumb bob inner tube penetrates through the lower limiting stop ring and is hinged with the balancing weight through the ball head hinge mechanism.
The technical problem to be solved by the present invention can be further solved by the following technical solutions, in the above-mentioned drilling auxiliary tool: the ball head hinge mechanism comprises a ball head fixedly connected to the lower end of the plumb inner tube, a spherical groove matched with the ball head is formed in the middle above the balancing weight, the ball head is inserted into the spherical groove, a pressing cover matched with the ball head is arranged at the opening of the spherical groove, and the ball head and the balancing weight are in compression connection through the pressing cover.
The technical problem to be solved by the present invention can be further solved by the following technical solutions, in the above-mentioned drilling auxiliary tool: a spring compression gap is reserved between the inner bottom surface of the supporting cylinder and the lower bottom surface of the balancing weight, and the longitudinal height of the spring compression gap is smaller than the maximum compression length of the spring.
Compared with the prior art, the invention has the beneficial effects that:
the upper end face of the impact stop ring is used for bearing the impact force of the lower end face of the inner cylinder of the rotary drill bit; by arranging the balancing weight, the spring buffer device and the supporting cylinder, after the impact stopping ring bears impact, the balancing weight descends to compress the buffer spring, the buffer spring absorbs the shock, the lower bottom surface of the balancing weight is suddenly stopped after contacting with the inner bottom surface of the supporting cylinder, and drilling slag in the annular cylinder of the rotary drilling bit can be quickly and reliably dug out;
through the arrangement of the cross-shaped swinging mechanism, the supporting cylinder can swing back and forth and left and right, and the plumb pipe can keep a plumb state even if the ground of a construction site is uneven by matching with the balancing weight; meanwhile, after each impact is shaken, the plumb bob pipe can be restored to the plumb bob position under the action of the plumb bob block so as to facilitate next impact and slag unloading.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a cross-sectional view taken at D-D of FIG. 1;
FIG. 3 is a schematic structural view of the rotary drilling bit mounted with the present invention;
fig. 4 is a longitudinal sectional view of fig. 3.
In the figure: 1. the hydraulic hammer comprises a hammer pipe, 101 guide columns, 102 a hammer outer pipe, 103 a hammer inner pipe, 2 a supporting cylinder, 3 an impact stop ring, 4 a balancing weight, 5 a spring cylinder, 6 a buffer spring, 7 an upper limiting stop ring, 8 a lower limiting stop ring, 9 an annular swing beam, 10 a protective umbrella, 11 a ball head, 12 a pin shaft, 13 a rotary drilling bit, 1301 an inner cylinder and 1302 an annular bottom door.
Detailed Description
The following further describes particular embodiments of the present invention to facilitate further understanding of the present invention by those skilled in the art, and does not constitute a limitation to the right thereof.
[ example 1 ]
Referring to fig. 1, in conjunction with fig. 2, a drilling assistance tool includes a plumb pipe 1 and a support cylinder 2;
an impact preventing ring 3 matched with an inner cylinder 1301 of the rotary drilling bit 13 and used for bearing the impact force of the rotary drilling bit 13 to realize slag discharging is fixedly sleeved on the plumb bob tube 1, a guide post 101 convenient for sleeving the inner cylinder 1301 of the rotary drilling bit 13 is arranged on the plumb bob tube 1 above the impact preventing ring 3, a balancing weight 4 is connected on the plumb bob tube 1 below the impact preventing ring 3, and a spring buffer device is sleeved on the plumb bob tube 1 between the impact preventing ring 3 and the balancing weight 4;
the spring buffer device comprises a spring barrel 5 sleeved on the plumb pipe 1, a buffer spring 6 is sleeved between the plumb pipe 1 and the spring barrel 5, an upper limiting mechanism for limiting the upper end of the buffer spring 6 is fixedly arranged on the plumb pipe, and a lower limiting mechanism for limiting the lower end of the buffer spring 6 is fixedly arranged on the spring barrel 5;
the support cylinder 2 is sleeved on the outer side of the spring cylinder 5 and accommodates the balancing weight 4, a spring compression gap is reserved between the inner bottom surface of the support cylinder 2 and the lower bottom surface of the balancing weight 4, and the longitudinal height of the spring compression gap is smaller than the maximum compression length of the spring; the supporting cylinder 2 and the spring cylinder 5 are connected through a cross swing mechanism;
the cross swing mechanism comprises an annular swing beam 9, four pin holes which are divided into four equal parts are arranged on the annular swing beam 9, two pin holes which are divided into two equal parts are arranged on the spring cylinder 5, two pin holes which are divided into two equal parts are arranged on the supporting cylinder 2, one pair of pin holes of the annular swing beam 9 are inwards rotatably connected with the two pin holes of the spring cylinder 5 through a pin shaft 12, and the other pair of pin holes of the annular swing beam 9 are outwards rotatably connected with the two pin holes of the supporting cylinder 2 through a pin shaft 12.
A protective umbrella 10 is arranged above the annular oscillating beam 9, and the protective umbrella 10 is sleeved on the plumb pipe 1 and covers the supporting cylinder 2 and the annular oscillating beam 9. The arrangement of the protective umbrella 10 can effectively protect the annular oscillating beam 9, the supporting cylinder 2, the spring cylinder 5 and the connecting structure among the annular oscillating beam, the cross oscillating mechanism and related parts of the cross oscillating mechanism from being damaged by detached drilling slag, and in addition, the drilling slag can be uniformly guided to scatter and fall.
The plumb pipe 1 comprises a plumb outer pipe 102 and a plumb inner pipe 103 which are fixedly sleeved, the lower end of the plumb inner pipe 103 extends out of the plumb outer pipe 102, a fixing ring is arranged between the upper end of the plumb inner pipe 103 and the plumb outer pipe 102, the fixing ring and the plumb inner pipe 103 are welded with each other, the impact preventing ring 3 is arranged on the plumb outer pipe 102, and the counterweight block 4 is arranged on the plumb inner pipe 103;
the spring cylinder 5 is sleeved on the outer plumb pipe 102, the buffer springs 6 are sleeved on the inner plumb pipe 103, the number of the buffer springs 6 can be two, and the two buffer springs 6 are separated by a separation washer sleeved on the inner plumb pipe 103; the upper limiting mechanism is an upper limiting stop ring 7 fixedly sleeved on the plumb inner tube 103, the lower limiting mechanism is a lower limiting stop ring 8 sleeved on the plumb inner tube 103, and the outer ring of the lower limiting stop ring 8 is fixedly connected with the inner wall of the spring barrel 5;
the lower end of the plumb bob inner tube 103 passes through the lower limit stop ring 8 and is hinged with the counterweight block 4 through a ball head 11 hinge mechanism.
The 11 hinge mechanisms of bulb include bulb 11 of fixed connection at the plumb bob inner tube 103 lower extreme, offer the spherical groove with 11 completions of bulb in the middle part above the balancing weight 4, bulb 11 pegs graft in spherical groove, be equipped with the gland with 11 completions of bulb at the spherical groove opening part, bulb 11 and balancing weight 4 compress tightly through the gland and are connected.
The installation step:
firstly, a protective umbrella 10 is sleeved on a plumb pipe 1 according to the relationship shown in figure 3, a buffer spring 6 is arranged in a spring cylinder 5, the plumb pipe 1 with the protective umbrella 10 is inserted into the spring cylinder 5 from the upper part to the lower part shown in figure 3, an annular swinging beam 9 is sleeved on the spring cylinder 5 from the lower part of the plumb pipe 1 shown in figure 3, a pair of pin holes on the annular swinging beam 9 and two pin holes on the spring cylinder 5 are pinned together through a pin shaft 12, a ball head 11 at the lower end of an inner plumb pipe 103 is connected with a balancing weight 4 through a gland, then the assembled balancing weight 4, the annular swinging beam 9, the plumb pipe 1, the protective umbrella 10 and the like are arranged in a supporting cylinder 2 from the upper part shown in figure 3, the two pin holes on the supporting cylinder 2 and the other pair of pin holes on the annular swinging beam 9 are pinned together through the pin shaft 12, under the action of the buffer spring 6, the balancing weight 4 can leave a certain distance from the inner bottom plate of the supporting cylinder 2, the distance between the lower bottom surface of the balancing weight 4 and the inner bottom surface of the supporting cylinder 2 is a spring compression gap.
The applicant integrates the advantages of the prior multiple drilling methods according to the experience of drilling machine research and development for years and the research on the drilling process, originally creates a brand-new drilling method and develops an engineering drilling machine which can conveniently use the method and has high-efficiency slag removal (the invention patent of the whole machine is applied and the detail is shown in the Chinese patent application with the application number of 201920706667.1).
The drill only lifts the drill bit and the drill slag in the drill bit during the secondary lifting, so that the lifting force of the drill can be maximally used for lifting the drill slag, the drilling depth and the lifting amount of the drill slag in a single-time lifting can be greatly improved, and meanwhile, a problem is caused that a large amount of drill slag in the single-time lifting is collected in the drill bit and is possibly compacted in a drill bit cylinder, and how to discharge the part of drill slag from the drill bit cylinder becomes a problem which needs to be considered. The invention is applicable to the rotary drilling bit 13 of the drilling machine.
When the inner diameter of the inner cylinder 1301 of the rotary drill bit 13 is slightly larger than the outer diameter of the guide post 101, and the rotary drill bit 13 is mounted, referring to fig. 3 and 4, the annular bottom door 1302 of the rotary drill bit 13 is opened, the guide post 101 above the plumb pipe 1 is inserted into the inner cylinder 1301 of the rotary drill bit 13, and the lifted rotary drill bit 13 can be lowered from the guide post 101 to the impact prevention ring 3 until the lower end surface of the inner cylinder 1301 of the rotary drill bit 13 contacts with the upper end surface of the impact prevention ring 3.
The working principle is as follows:
the gravity center of the total mass of the plumb pipe 1, the annular swing beam 9, the buffer spring 6, the balancing weight 4, the protective umbrella 10 and the like is lower than the average height of the annular swing beam 9, so that the plumb pipe 1 can keep a plumb state even if the ground of a construction site is uneven.
When the rotary drill bit 13 with the drilling slag is pressed on the upper end of the impact prevention ring 3, because the rotary drill bit 13 and the gravity of the drilling slag are applied to the impact prevention ring 3, at the moment, the weight of the rotary drill bit 13, the drilling slag, the plumb pipe 1, the annular oscillating beam 9, the buffer spring 6, the balancing weight 4, the protective umbrella 10 and the like which are added together is far larger than the supporting force born by the spring, the lower bottom surface of the balancing weight 4 can be downwards contacted with the inner bottom surface of the supporting cylinder 2, and 4 pin shafts 12 which are in pin joint with the annular oscillating beam 9 only bear the shearing force smaller than the elastic force of the buffer spring 6; set up guide post 101 on the plumbous hammer pipe 1 of impact resistance ring 3 top, on the one hand, play the guide effect, conveniently dig the inner tube 1301 suit of digging the drill bit 13 soon on plumbous hammer pipe 1, on the other hand, provide the impact distance, after will digging the inner tube 1301 cover of digging the drill bit 13 soon on plumbous hammer pipe 1 promptly, put soon and dig drill bit 13 soon, dig the upper end face that the inner tube 1301 lower end face of drill bit 13 contacted the impact resistance ring 3 with the form of impact soon, impact resistance ring 3 accepts the impact force of digging the drill bit 13 soon, buffer spring 6 receives the pressure buffering, bottom surface contact scram behind the bottom plate in the support cylinder 2 under the balancing weight 4, utilize the downward inertia of drilling sediment to reach the purpose of mound out the interior drilling sediment of the rotary drill bit 13 annular cylinder fast and reliably.
Claims (4)
1. A drilling aid, characterized by: comprises a plumb pipe and a supporting cylinder;
the lead hammer pipe is fixedly sleeved with an impact stopping ring, the lead hammer pipe above the impact stopping ring is arranged as a guide column, the lead hammer pipe below the impact stopping ring is connected with a balancing weight, and a spring buffer device is sleeved on the lead hammer pipe between the impact stopping ring and the balancing weight;
the spring buffer device comprises a spring barrel sleeved on the plumb pipe, a buffer spring is sleeved between the plumb pipe and the spring barrel, an upper limiting mechanism for limiting the upper end of the buffer spring is fixedly arranged on the plumb pipe, and a lower limiting mechanism for limiting the lower end of the buffer spring is fixedly arranged on the spring barrel;
the supporting cylinder is sleeved on the outer side of the spring cylinder and accommodates the balancing weight therein, and the supporting cylinder and the spring cylinder are connected through a cross swing mechanism;
the cross swing mechanism comprises an annular swing beam, four quartered pin holes are formed in the annular swing beam, two halved pin holes are formed in the spring cylinder, two halved pin holes are formed in the supporting cylinder, one pair of pin holes of the annular swing beam is connected with the two pin holes of the spring cylinder in a rotating mode inwards, and the other pair of pin holes of the annular swing beam is connected with the two pin holes of the supporting cylinder in a rotating mode outwards through pin shafts.
2. The drilling aid of claim 1, wherein: a protective umbrella is arranged above the annular oscillating beam, is sleeved on the plumb pipe and covers the supporting cylinder and the annular oscillating beam.
3. The drilling aid of claim 1, wherein: the lead hammer pipe comprises a lead hammer outer pipe and a lead hammer inner pipe which are fixedly sleeved, the impact preventing ring is arranged on the lead hammer outer pipe, and the balancing weight is arranged on the lead hammer inner pipe;
the spring cylinder is sleeved on the outer plumb pipe, and the buffer spring is sleeved on the inner plumb pipe; the upper limiting mechanism is an upper limiting baffle ring fixedly sleeved on the plumb inner tube, the lower limiting mechanism is a lower limiting baffle ring sleeved on the plumb inner tube, and the outer ring of the lower limiting baffle ring is fixedly connected with the inner wall of the spring barrel;
the lower end of the plumb bob inner tube penetrates through the lower limiting stop ring and is hinged with the balancing weight through the ball head hinge mechanism.
4. The drilling aid of claim 3, wherein: the ball head hinge mechanism comprises a ball head fixedly connected to the lower end of the plumb inner tube, a spherical groove matched with the ball head is formed in the middle above the balancing weight, the ball head is inserted into the spherical groove, a pressing cover matched with the ball head is arranged at the opening of the spherical groove, and the ball head and the balancing weight are in compression connection through the pressing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010579377.2A CN111794686B (en) | 2020-06-23 | 2020-06-23 | Well drilling auxiliary tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010579377.2A CN111794686B (en) | 2020-06-23 | 2020-06-23 | Well drilling auxiliary tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111794686A CN111794686A (en) | 2020-10-20 |
| CN111794686B true CN111794686B (en) | 2022-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010579377.2A Active CN111794686B (en) | 2020-06-23 | 2020-06-23 | Well drilling auxiliary tool |
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| Country | Link |
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| CN (1) | CN111794686B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114274018B (en) * | 2021-12-28 | 2023-02-03 | 苏州天顺复合材料科技有限公司 | Full-automatic grinding device for wind power blade girder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726802A (en) * | 2013-12-26 | 2014-04-16 | 北京市三一重机有限公司 | Deslagging device and rotary drilling rig |
| CN208184669U (en) * | 2018-05-10 | 2018-12-04 | 郑州富岛机械设备有限公司 | A kind of rotary drilling rig auxiliary slag unloading device |
| CN208252040U (en) * | 2018-05-22 | 2018-12-18 | 中国水利水电第八工程局有限公司 | A kind of drilling bit of rotary-digging drilling rig being easy to slag dumping |
| CN109989705A (en) * | 2019-05-17 | 2019-07-09 | 天明(南京)智能装备科技有限公司 | The engineering driller of highly effective slag draining |
| CN109989715A (en) * | 2019-05-17 | 2019-07-09 | 天明(南京)智能装备科技有限公司 | The drill tool assembly of engineering driller |
| CN213016201U (en) * | 2020-06-23 | 2021-04-20 | 天明(南京)智能装备科技有限公司 | Well drilling auxiliary tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20122264A1 (en) * | 2012-12-28 | 2014-06-29 | Soilmec Spa | ELICA CLEANER DEVICE TO REMOVE FROM A SCREW TOOL, EXCAVATION MACHINE PROVIDING SUCH A CLEANER AND USING THIS EXCAVATION MACHINE |
-
2020
- 2020-06-23 CN CN202010579377.2A patent/CN111794686B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726802A (en) * | 2013-12-26 | 2014-04-16 | 北京市三一重机有限公司 | Deslagging device and rotary drilling rig |
| CN208184669U (en) * | 2018-05-10 | 2018-12-04 | 郑州富岛机械设备有限公司 | A kind of rotary drilling rig auxiliary slag unloading device |
| CN208252040U (en) * | 2018-05-22 | 2018-12-18 | 中国水利水电第八工程局有限公司 | A kind of drilling bit of rotary-digging drilling rig being easy to slag dumping |
| CN109989705A (en) * | 2019-05-17 | 2019-07-09 | 天明(南京)智能装备科技有限公司 | The engineering driller of highly effective slag draining |
| CN109989715A (en) * | 2019-05-17 | 2019-07-09 | 天明(南京)智能装备科技有限公司 | The drill tool assembly of engineering driller |
| CN213016201U (en) * | 2020-06-23 | 2021-04-20 | 天明(南京)智能装备科技有限公司 | Well drilling auxiliary tool |
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| CN111794686A (en) | 2020-10-20 |
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