CN203547562U - Integrated drilling and cutting drill stem - Google Patents
Integrated drilling and cutting drill stem Download PDFInfo
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- CN203547562U CN203547562U CN201320674165.8U CN201320674165U CN203547562U CN 203547562 U CN203547562 U CN 203547562U CN 201320674165 U CN201320674165 U CN 201320674165U CN 203547562 U CN203547562 U CN 203547562U
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- hole
- drilling rod
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Abstract
The utility model provides an integrated drilling and cutting drill stem which solves the problems that procedures of a gas extraction underground tunnel are complicated, and working procedures and a working period of construction and the effect of extracting gas from the underground tunnel can not be taken into consideration at the same time. The drilling stem comprises a drilling stem body, a hole sealing assembly and a jet-flow hole assembly. The integrated drilling and cutting drill stem has the advantages that the same set of equipment can drill a hole and cut a coal layer by only changing the pressure of working liquid supplied to the drill stem. The principle of the integrated drilling and cutting drill stem is that working liquid with different pressure can enable a pressure adjusting spring of the hole sealing assembly to produce different pressure on a hole sealing plug. When the pressure is large, the pressure of the hole sealing plug on a cone structure of the drilling stem is larger and at the moment, most of the working liquid is jetted out of a jet-flow through hole to cut the coal layer.
Description
Technical field
The utility model belongs to technology field, relates to the high-pressure hydraulic pressure break coal seam device in the front pre-mash gas extraction work progress of the formal exploitation of coal, frequently causes up and down the problem of inefficiency for solving existing drilling rod work progress.
Background technology
Coal mine gas, be one of disaster of down-hole, if generation gas, not only can heavy damage production environment, and can cause casualties, cause huge loss to the people, enterprise, country, therefore, eliminating the precondition of gas exceeding limit and prevention gas, accident, is also one of important leverage of mine safety production.
But, due to geologic sedimentation effect, the toxic and harmfuls such as a large amount of gas in coal seam, have been overstock, in order to realize safe digging, under normal circumstances, before digging, first to arrange special gas pumping tunnel, adopt underground drill rig construction extraction borehole to implement in advance gas pumping, after extraction is up to standard, can start digging coal.The construction in gas pumping tunnel generally includes boring and isolates the multiple working procedures such as coal seam.Concrete grammar is to use underground drill rig first to execute to bore the boring of certain depth, then drilling rod is changed into after the drill rod special for isolating coal seam and in shot borehole, needs the position, coal seam of isolating, and then adopts water under high pressure to isolate coal seam.In order to reach good gas pre-drainage, adopt effect, conventionally require boring to there is certain degree of depth, Cai this just need to repeatedly exit drilling rod and repeatedly change boring drilling rod and isolate coal seam when arriving coal seam from boring.This drilling rod Renewal process can take a large amount of engineering times, affects programming.
At present for gas pumping tunnel is formerly arranged in the security needs of assurance pit mining, conventionally the gas pumping tunnel adopting has two kinds, one is drainage holes, another kind is by isolating the modes such as coal seam, to increase crack, coal seam gap the same of boring, with regard to effect, the latter's gas pumping amount can reach the former 5 to 8 times conventionally, but the latter is due to complex procedures, therefore need to be take the longer duration as cost, be mainly because need constantly to change drilling rod hole and the conversion of cutting action in boring procedure.
Utility model content
The purpose of this utility model is the problem that can not simultaneously take into account in order to solve gas pumping tunnel complex procedures, working procedure duration and tunnel mash gas extraction effect, has proposed a kind of integrated brill and has cut drilling rod.
The technical solution of the utility model is: integrated brill cuts drilling rod, it is characterized in that, comprises drilling rod main body, sealing of hole assembly and spurt hole assembly;
The connection male that described drilling rod main body comprises the through hole that axially runs through and two ends pairing be connected female, described through hole is pyramidal structure in one end of drilling rod; Sealing of hole assembly is positioned in through hole, comprise taper sealing of hole plug, pressure spring and pressure regulation plug, the end face that taper sealing of hole plug is larger is connected with pressure spring one end face, the other end of pressure spring connects pressure regulation plug, described sealing of hole plug mates with the pyramidal structure of through hole, for shutoff through hole, pressure regulation plug is the pressure to pressure spring for increasing hydraulic fluid; Described spurt hole assembly is arranged in drilling rod main body, comprises jet flow through hole, and the through hole of jet flow through hole and drilling rod main body is vertical and be positioned at the rear of sealing of hole plug.In the through hole of described drilling rod main body, be provided with jump ring, jump ring is used for limiting sealing of hole assembly.
Further, described pressure regulation plug comprises cylindricality cock body and taper connection portion, the end face of cylindricality cock body and taper connection portion is in contact with one another and links together, wherein taper connection portion external diameter and pressure spring internal diameter match, for being connected with pressure spring, cylindricality cock body makes pressure spring produce the pressure to sealing of hole plug by stopping hydraulic fluid.
Further, described cylindricality cock body and the taper connection portion structure that is formed in one.
Further, on the other end of described cylindricality cock body, comprise groove, described groove is for increasing the resistance to hydraulic fluid.
Further, above-mentioned jet flow via design is the horn mouth shape that import large outlet is little.
The beneficial effects of the utility model are: the integrated brill the utility model proposes cuts drilling rod by spurt hole assembly and sealing of hole assembly are set on drilling rod, make same set of equipment can hole and isolate coal seam simultaneously, only need conversion to supply with the pressure of the hydraulic fluid of drilling rod, use boring pressure to supply with hydraulic fluid and can implement normal drilling operating, use cutting pressure to supply with hydraulic fluid and can implement cutting action.Its principle is that the hydraulic fluid of different pressures can make the pressure spring of sealing of hole assembly produce the different pressures to sealing of hole plug, when pressure is more greatly, sealing of hole plug is just larger to the pressure of drilling rod pyramidal structure, and now most hydraulic fluid just ejects to isolate coal seam from jet flow through hole.Realized boring and cut integratedly, while having saved the conversion of boring and cutting action, changed time of drill rod special, when saving the duration, guaranteed that the extraction tunnel of arranging has better effect.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is the structural representation of the utility model sealing of hole assembly.
Fig. 3 is the right view of pressure regulation plug in the sealing of hole assembly shown in Fig. 2.
Fig. 4 is the structural representation of the utility model spurt hole assembly.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in Figure 1 to 4, the integrated brill of the present embodiment cuts drilling rod, comprises drilling rod main body 1, sealing of hole assembly 2 and spurt hole assembly 3; The connection male 11 that described drilling rod main body 1 comprises the through hole that axially runs through and two ends pairing be connected female 12, described through hole is pyramidal structure in one end of drilling rod; Sealing of hole assembly is positioned in through hole, comprise taper sealing of hole plug 21, pressure spring 22 and pressure regulation plug 23, the end face that taper sealing of hole plug 21 is larger is connected with pressure spring 22 1 end faces, the other end of pressure spring connects pressure regulation plug 23, described sealing of hole plug mates with the pyramidal structure of through hole, for shutoff through hole, pressure regulation plug is the pressure to pressure spring for increasing hydraulic fluid; Described spurt hole assembly 3 is arranged in drilling rod main body, comprises jet flow through hole 311, and the through hole of jet flow through hole and drilling rod main body is vertical and be positioned at the rear of sealing of hole plug.Preferably, in the through hole of described drilling rod main body, be provided with jump ring, jump ring is used for limiting sealing of hole assembly.
Concrete, the pressure regulation plug of above-mentioned sealing of hole assembly comprises cylindricality cock body 232 and taper connection portion 231, the end face of cylindricality cock body and taper connection portion is in contact with one another and links together, wherein taper connection portion is for being connected with pressure spring, and cylindricality cock body makes pressure spring produce the pressure to sealing of hole plug by stopping hydraulic fluid.Cylindricality cock body and taper connection quality award from the ministry are elected integrated formed structure as.In order to increase the pressure of hydraulic fluid to spring, on the other end of described cylindricality cock body, comprise groove 233, described groove is for increasing the resistance to hydraulic fluid.
In boring rod set, through hole cuts with hydraulic fluid for delivery of brill, the connection male 11 of different drilling rods be connected female 12 and can interconnect, can form longer drilling rod.Wherein, jackrod structure is pipe-like, and there are the male of connection and female in two ends, and connection male and female can be preferably and be threaded; Through hole is similar to funnel structure in the pyramidal structure of one end of drilling rod, for coordinating with sealing of hole assembly the switching of carrying out mode of operation; Hydraulic fluid conventionally adopts water in engineering application, also can adopt other hydraulic fluids, and its object is mainly lower the temperature and under high pressure isolate coal seam for drilling rod boring procedure, and hydraulic fluid is preferably water here.
As shown in Figure 2, described sealing of hole assembly 2 comprises conical sealing of hole plug 21 and pressure spring 22, after being connected with pressure spring 22 1 end faces, the larger end face of conical sealing of hole plug 21 is freely positioned in through hole, the diameter of the larger end face of described sealing of hole plug 21 is greater than the minimum diameter of described through hole pyramidal structure, described pressure spring 22 for according to the pressure-acting of described hydraulic fluid on sealing of hole plug 21 so that drilling rod 1 in boring and cutting, change between two functions; Above-mentioned transfer process is mainly that pressure spring is subject to the blastic deformation of hydraulic fluid, produces the pressure to sealing of hole plug, and the through hole of drilling rod is blocked because be when the pressure of hydraulic fluid increases, and then forces hydraulic fluid to isolate coal seam from the ejection of jet flow assembly.But due to pressure spring to accept area less, easily cause sealing of hole plug to be difficult for securing when shutoff drilling rod through hole.
As shown in Figure 3, the spurt hole assembly 3 of the present embodiment comprises and being arranged in drilling rod 1 main body along the radially jet flow through hole 311 of through hole and space outerpace described in UNICOM of drilling rod 1, and the position of described jet flow through hole 311 meets the height that its distance to drilling rod pyramidal structure place end face is greater than taper sealing of hole plug 21.Its operating principle is as follows: the external diameter of taper sealing of hole plug and pressure spring is consistent, and be less than the through hole internal diameter of drilling rod, sealing of hole assembly is put into drilling rod through hole and can be free to slide, when fluid pressure hour, its pressure to pressure spring and sealing of hole plug is also less, sealing of hole plug is less to the obstruction dynamics of through-hole passage, therefore flowing to drill bit from the gap of sealing of hole plug and through hole, most of liquid normally carries out to guarantee boring, when fluid pressure increases to a certain degree such as during to 8MPa-10MPa, pressure spring and sealing of hole plug be subject to pressure that liquid is huge and almost shutoff the through hole of drilling rod (now do not block drilling rod through hole completely, some liquid flows through with cooling drill bit from the gap between sealing of hole plug and drilling rod), a large amount of highly pressurised liquids are spouting from the spurt hole assembly of drilling rod, the high-pressure spray ejecting can be used for isolating coal seam.So, adopt after this drilling rod, by adjusting, supply with the pressure of hydraulic fluid and can realize the conversion of boring and cutting function, and need not change target drill, greatly save the duration.
As shown in Figures 1 and 3, spurt hole assembly 3 is preferably removable sinking bolt arrangement, specifically comprise the sinking bolt thread hole 32 and the corresponding sinking bolt 31 that on drilling rod 1, along drilling rod 1, radially arrange, described sinking bolt 31 comprises jet flow through hole 311, and described jet flow through hole 311 axis overlap with sinking bolt shaft 31 lines.The preferred version that the spurt hole assembly of above-mentioned sinking bolt arrangement is the present embodiment, because jet flow through hole need to bear very high pressure conventionally, therefore be to hold one of flimsy parts, adopt the jet flow through-hole structure of this sinking bolt can make the jet flow through hole and the drilling rod that easily damage separate, when breaking down, jet flow through hole can make up by the sinking bolt of changing spurt hole assembly, can reduce use cost, economize on resources.
Further, above-mentioned jet flow through hole 311 is designed to the horn mouth shape that import large outlet is little, further to improve the effect of isolating jet.Because cutting coal seam mainly depends on the high-pressure energy of hydraulic fluid, but when high-pressure energy sprays from jet flow through hole because the jet flow shape of through holes difference extent of damage differs greatly, when conventionally horn mouth airflow design can finely must guarantee liquid ejection, its high-pressure energy loss is less, therefore adopt the jet flow via design of the horn mouth shape that import large outlet is little in the preferred version of the present embodiment.
As an example of a concrete engineering example, analyze the effect of the present embodiment below:
Adopt the integrated brill of the present embodiment to cut drilling rod due to without repeating upper and lower drilling rod, therefore reduce the drilling construction time, can be expressed as follows: T=(L1/L2) × t1 × S1 × S2+T1; Wherein, T1=(L1/V) × 2 × S1 × S2, therefore T=(L1/L2) × t1 × S1 × S2+ (L1/V) × 2 × S1 × S2, in formula, each character implication is as follows: T saves time (min), L1 single hole length (m), L2 run of steel (m), the upper and lower bar time of t1 (every) (min), the each drilling holes at the drilling yard number of S1 (individual), S2 needs the drill site number (individual) of waterpower cutting, and V fltting speed (pushing away empty speed) is (m/min).
For a certain engineering, suppose that its drilling depth requires L1=36m, run of steel L2=0.8m, upper lower beam time t1=1min, each drilling holes at the drilling yard number S1=10, needs the drill site number S2=181 that cuts in water, fltting speed (pushing away empty speed) V=10m/min, T=(36/0.8) × 1 × 10 × 181+36/10 × 2 × 10 × 181=94482min, i.e. about 65.61 days of T=save time.By result of calculation, drawn, for the engineering that is similar to above-mentioned drill site parameter, after the drilling rod of employing the present embodiment, will make 65.61 days approximately in advance duration of a project, greatly improve engineering efficiency, reduce engineering cost.
In addition, by the boring after cutting is carried out to effect expedition, the drilling gas after cutting is 5-8 times of not cutting drilling from discharge capacity, and single hole extraction concentration, on average 50%～80%, is easy to find out, after the drilling rod application of the present embodiment, has obtained positive effect.
Those of ordinary skill in the art will appreciate that, embodiment described here is in order to help reader understanding's principle of the present utility model, should be understood to that protection domain of the present utility model is not limited to such special statement and embodiment.Those of ordinary skill in the art can make various other various concrete distortion and combinations that do not depart from the utility model essence according to disclosed these technology enlightenments of the utility model, and these distortion and combination are still in protection domain of the present utility model.
Claims (6)
1. integrated brill cuts drilling rod, it is characterized in that, comprises drilling rod main body, sealing of hole assembly and spurt hole assembly;
The connection male that described drilling rod main body comprises the through hole that axially runs through and two ends pairing be connected female, described through hole is pyramidal structure in one end of drilling rod; Sealing of hole assembly is positioned in through hole, comprises taper sealing of hole plug and pressure spring, and the end face that taper sealing of hole plug is larger is connected with pressure spring one end face, and described sealing of hole plug mates with the pyramidal structure of through hole, for shutoff through hole; Described spurt hole assembly is arranged in drilling rod main body, comprises jet flow through hole, and the through hole of jet flow through hole and drilling rod main body is vertical and be positioned at the rear of sealing of hole plug; In the through hole of described drilling rod main body, be provided with jump ring, jump ring is used for limiting sealing of hole assembly.
2. integrated brill according to claim 1 cuts drilling rod, it is characterized in that, described pressure regulation plug comprises cylindricality cock body and taper connection portion, and the end face of cylindricality cock body and taper connection portion is in contact with one another and links together, and wherein taper connection portion external diameter and pressure spring internal diameter match.
3. integrated brill according to claim 2 cuts drilling rod, it is characterized in that, described cylindricality cock body and the taper connection portion structure that is formed in one.
4. according to the integrated brill described in claim 2 or 3, cut drilling rod, it is characterized in that, on the other end of described cylindricality cock body, comprise groove, described groove is for increasing the resistance to hydraulic fluid.
5. integrated brill according to claim 1 cuts drilling rod, it is characterized in that, described spurt hole assembly is sinking bolt, and described sinking bolt is connected with drill rod thread, and jet flow through hole is arranged on sinking bolt.
6. integrated brill according to claim 1 cuts drilling rod, it is characterized in that, described jet flow through hole is toroidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320674165.8U CN203547562U (en) | 2013-10-29 | 2013-10-29 | Integrated drilling and cutting drill stem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320674165.8U CN203547562U (en) | 2013-10-29 | 2013-10-29 | Integrated drilling and cutting drill stem |
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| Publication Number | Publication Date |
|---|---|
| CN203547562U true CN203547562U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320674165.8U Expired - Fee Related CN203547562U (en) | 2013-10-29 | 2013-10-29 | Integrated drilling and cutting drill stem |
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| CN (1) | CN203547562U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573193A (en) * | 2013-10-29 | 2014-02-12 | 成都晟鑫机电设备有限公司 | Integrated drilling and splitting drill stem device |
| CN103643899A (en) * | 2013-11-05 | 2014-03-19 | 成都晟鑫机电设备有限公司 | Integrated drilling-cutting drill rod device |
| CN105672901A (en) * | 2015-12-31 | 2016-06-15 | 武汉江钻恒立工程钻具股份有限公司 | Multifunctional drilling rod |
| CN107461157A (en) * | 2016-06-04 | 2017-12-12 | 徐州博安科技发展有限责任公司 | Flow switch slot punching drilling rod |
-
2013
- 2013-10-29 CN CN201320674165.8U patent/CN203547562U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573193A (en) * | 2013-10-29 | 2014-02-12 | 成都晟鑫机电设备有限公司 | Integrated drilling and splitting drill stem device |
| CN103573193B (en) * | 2013-10-29 | 2015-09-30 | 成都晟鑫机电设备有限公司 | Integration is bored and is cut boring rod set |
| CN103643899A (en) * | 2013-11-05 | 2014-03-19 | 成都晟鑫机电设备有限公司 | Integrated drilling-cutting drill rod device |
| CN105672901A (en) * | 2015-12-31 | 2016-06-15 | 武汉江钻恒立工程钻具股份有限公司 | Multifunctional drilling rod |
| CN105672901B (en) * | 2015-12-31 | 2018-01-30 | 武汉江钻恒立工程钻具股份有限公司 | A kind of Multifunctional drill rod |
| CN107461157A (en) * | 2016-06-04 | 2017-12-12 | 徐州博安科技发展有限责任公司 | Flow switch slot punching drilling rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20151029 |
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| EXPY | Termination of patent right or utility model |