CN203808850U - Down-hole drill dust blocking device - Google Patents
Down-hole drill dust blocking device Download PDFInfo
- Publication number
- CN203808850U CN203808850U CN201420119741.7U CN201420119741U CN203808850U CN 203808850 U CN203808850 U CN 203808850U CN 201420119741 U CN201420119741 U CN 201420119741U CN 203808850 U CN203808850 U CN 203808850U
- Authority
- CN
- China
- Prior art keywords
- dust
- diameter
- fairlead
- dust blocking
- dust board
- 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.)
- Expired - Lifetime
Links
- 239000000428 dust Substances 0.000 title claims abstract description 84
- 230000000903 blocking effect Effects 0.000 title abstract 9
- 238000005553 drilling Methods 0.000 claims abstract description 50
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005453 pelletization Methods 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model discloses a down-hole dust blocking device. The down-hole dust blocking device comprises a dust catching cover (1); a dust blocking plate (3) which surrounds a drill rod is installed at the upper end of the dust catching cover (1); a guiding sleeve (2) sleeves the drill rod and is inserted inside the dust blocking plate (3); the upper end of the guiding sleeve (2) is provided with a protruding shoulder (7) with the diameter larger than the internal diameter of the dust blocking plate (3); an excircle of the guiding sleeve (2) is matched with an inner hole of the dust blocking plate (3); the guiding sleeve (2) and the dust blocking plate (3) can perform relative rotation motion and relative linear motion. The down-hole dust blocking device has the advantages of being simple in structure and low in cost, effectively eliminating top impact during drill drilling, providing guiding during drilling and guaranteeing good hole straightness.
Description
Technical field
The utility model relates to a kind of type dust arrester, particularly relates to a kind of hidden hole drilling type dust arrester.
Background technology
Down-the-hole drill is widely used in the every field such as mining, metallurgy, building, machining, carries out the Drilling of foundation construction, tunnel excavation, exploration, quarrying, mining shot hole.The hidden hole drilling dust forming of holing is collected by dust pelletizing system, guarantees good bore operation environment.But because the external diameter of down-the-hole air hammer is generally greater than the diameter of drilling rod, and must pass through hidden hole drilling dust hood changing hidden hole drilling impactor under the job states such as bar, therefore in the time holing and carry brill, unavoidably spilt from dust hood upper end open by a large amount of dusts, form top and rush phenomenon.Control at present top punching and mainly utilize two double team pieces of two oil cylinder pushings.In the time holing and carry brill, double team piece is embraced to drilling rod, while changing bar, open, guarantee that impactor passes through.This method manufacturing cost is high, complicated operation and misoperation easily occurs.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of simple in structure, cost is low, can effectively prevent top rush phenomenon, improve efficiency of dust collection simultaneously in the time of boring to guiding is provided, the hidden hole drilling type dust arrester of the straightness accuracy that ensures to hole.
In order to solve the problems of the technologies described above, the hidden hole drilling type dust arrester that the utility model provides, comprise dust hood body, upper end at described dust hood body is provided with the dust board that surrounds drilling rod, fairlead is sleeved on drilling rod and is inserted in described dust board, the upper end of described fairlead is provided with the convex shoulder that diameter is greater than the internal diameter of described dust board, the cylindrical of described fairlead contacts cooperation with the endoporus of described dust board, described fairlead and described dust board energy relative rotary motion and linear relative movement.
Further, the endoporus of described dust board is slightly larger than the maximum outside diameter of impactor, guarantees that impactor can be smoothly by the diameter of bore of described dust board; Described fairlead compensation drilling rod and the diameter of impactor are poor, and internal diameter is slightly larger than the diameter of drilling rod, guarantees that drilling rod can pass through smoothly, and external diameter is slightly less than the diameter of bore of described dust board, guarantees that both can realize relative circular motion and linear relative movement.
Adopt the hidden hole drilling type dust arrester of technique scheme, in the time that hidden hole drilling is holed, fairlead coordinates with dust board endoporus because of Gravitative Loads, for drilling rod provides guide effect.Under this state, because the gap between fairlead and drilling rod, fairlead and dust board is less, the dust that boring produces almost can run out, and because sealing is better, the efficiency of dust collection of dust pelletizing system is higher; When hidden hole drilling is carried while boring, due to the deadweight of fairlead, and fairlead and drilling rod have certain gap, and fairlead still contacts with dust hood body upper opening place, effectively prevents from pushing up rushing phenomenon; When drilling rod rises to certain position, impactor contact fairlead, promotes fairlead up, and when fairlead exits dust board endoporus completely, impactor enters dust board endoporus; In the time finishing changing drilling rod or again hole, fairlead, along with drilling rod is descending, coordinates with dust board endoporus.The gap at whole operation process dust hood body upper opening place is very little, and backhaul seldom can be run out of, therefore can effectively prevent that top from rushing phenomenon, improves efficiency of dust collection, and provide guide effect in the time of boring.The upper end of fairlead is provided with the convex shoulder that diameter is greater than the internal diameter of described dust board, and guarantee fairlead is blocked by dust board can be not descending through dust board 3.
In sum, the utility model be a kind of simple in structure, cost is low, can effectively prevent top rush phenomenon, improve efficiency of dust collection simultaneously in the time of boring to guiding is provided, the hidden hole drilling type dust arrester of the straightness accuracy that ensures to hole.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is use schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, further describe the detailed description of the invention of this patent.
As shown in Figure 1, on drilling rod 5, be connected with impactor 4, rod disassembling device 6 is installed on drilling rod 5, the dust board 3 that surrounds drilling rod 5 is installed in the upper end of dust hood body 1, fairlead 2 is sleeved on drilling rod 5 and is inserted in dust board 3, the endoporus of dust board 3 is formed by two blocks of semi-circular plates, the upper end of fairlead 2 is provided with the convex shoulder 7 that diameter is greater than the internal diameter of dust board 3, guarantee fairlead 2 is blocked by dust board 3 can be not descending through dust board 3, the cylindrical of fairlead 2 contacts cooperation with the endoporus of dust board 3, fairlead 2 and dust board 3 energy relative rotary motion and linear relative movements, the endoporus of dust board 3 is slightly larger than the maximum outside diameter of impactor 4, guarantee that impactor 4 can pass through the diameter of bore of dust board 3 smoothly, it is poor with the diameter of impactor 4 that fairlead 2 compensates drilling rod 5, and internal diameter is slightly larger than the diameter of drilling rod 5, guarantees that drilling rod 5 can pass through smoothly, and external diameter is slightly less than the diameter of bore of dust board 3, guarantees that both can realize relative circular motion and linear relative movement.
Referring to Fig. 1, in the time that hidden hole drilling is holed, fairlead 2 Gravitative Loads contact with dust board 3, for drilling rod 5 provides guide effect.Under this state, because the gap between fairlead 2 and drilling rod 5, fairlead 2 and dust board 3 is less, the dust that boring produces almost can run out, and because sealing is better, the efficiency of dust collection of dust pelletizing system is higher; When hidden hole drilling is carried while boring, due to the deadweight of fairlead 2, and fairlead 2 has certain gap with drilling rod 5, and fairlead 2 still contact with dust board 3 endoporus, effectively prevents from pushing up rushing phenomenon; As shown in Figure 2, when drilling rod 5 rises to certain position, impactor 4 contacts fairlead 2, promotes fairlead 2 up, and when fairlead 2 exits dust board 3 endoporus completely, impactor 4 enters dust board 3 endoporus; In the time finishing changing drilling rod 5 or again hole, fairlead 2, along with drilling rod 5 is descending, contacts with dust board 3 endoporus.Gap between the endoporus of whole operation process dust board 3 and drilling rod 5/ impactor 4 is very little, and dust seldom can be run out of, therefore can effectively prevent that top from rushing phenomenon, improves efficiency of dust collection, and provide guide effect in the time of boring.
The utility model is simple in structure, and cost is low, and the top can effectively eliminate drill hole of drilling machine time rushes phenomenon, and can in the time of boring, provide guiding, ensures good Kong Zhidu.
Claims (2)
1. a hidden hole drilling type dust arrester, comprise dust hood body (1), it is characterized in that: the dust board (3) that surrounds drilling rod is installed in the upper end of described dust hood body (1), fairlead (2) is sleeved on drilling rod and is inserted in described dust board (3), the upper end of described fairlead (2) is provided with the convex shoulder (7) that diameter is greater than the internal diameter of described dust board (3), the cylindrical of described fairlead (2) contacts cooperation with the endoporus of described dust board (3), described fairlead (2) can relative rotary motion and linear relative movement with described dust board (3).
2. hidden hole drilling type dust arrester according to claim 1, is characterized in that: the endoporus of described dust board (3) is slightly larger than the maximum outside diameter of impactor, guarantees that impactor can be smoothly by the diameter of bore of described dust board (3); Described fairlead (2) compensation drilling rod and the diameter of impactor are poor, and internal diameter is slightly larger than the diameter of drilling rod, and external diameter is slightly less than the diameter of bore of described dust board (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420119741.7U CN203808850U (en) | 2014-03-17 | 2014-03-17 | Down-hole drill dust blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420119741.7U CN203808850U (en) | 2014-03-17 | 2014-03-17 | Down-hole drill dust blocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203808850U true CN203808850U (en) | 2014-09-03 |
Family
ID=51447623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420119741.7U Expired - Lifetime CN203808850U (en) | 2014-03-17 | 2014-03-17 | Down-hole drill dust blocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203808850U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285494A (en) * | 2016-09-22 | 2017-01-04 | 潘春燕 | A kind of down-the-hole drill boring spraying dust-collecting robot |
| CN111764826A (en) * | 2020-07-29 | 2020-10-13 | 云南云内动力机械制造有限公司 | Liftable drill rod guide sleeve structure and method |
-
2014
- 2014-03-17 CN CN201420119741.7U patent/CN203808850U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285494A (en) * | 2016-09-22 | 2017-01-04 | 潘春燕 | A kind of down-the-hole drill boring spraying dust-collecting robot |
| CN108104864A (en) * | 2016-09-22 | 2018-06-01 | 潘春燕 | A kind of stone pit rock drilling perforation process dust prevention and control handles automation equipment |
| CN111764826A (en) * | 2020-07-29 | 2020-10-13 | 云南云内动力机械制造有限公司 | Liftable drill rod guide sleeve structure and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |
|
| CX01 | Expiry of patent term |