CN203685037U - Pipe-follow drilling chambering device of soft broken coal bed gas extraction hole - Google Patents
Pipe-follow drilling chambering device of soft broken coal bed gas extraction hole Download PDFInfo
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- CN203685037U CN203685037U CN201420045151.4U CN201420045151U CN203685037U CN 203685037 U CN203685037 U CN 203685037U CN 201420045151 U CN201420045151 U CN 201420045151U CN 203685037 U CN203685037 U CN 203685037U
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- pipe
- drill bit
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- scraper
- hole
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Abstract
The utility model relates to a pipe-follow drilling chambering device of a soft broken coal bed gas extraction hole. The pipe-follow drilling chambering device can effectively resolve the problems that drilling of the soft broken coal bed gas extraction hole is difficult, and the hole-forming effect is poor. According to the technical scheme, a drill and a drill connector are connected together, the drill connector is arranged in a sleeve, the upper end of the sleeve is provided with a top cap, the drill connector is sleeved with a spring, the upper end of the spring is fixed through a gasket, the lower end of the spring is fixed through the top cap, a chambering tool opening and closing component is arranged inside the sleeve and composed of a pair of scrapers, a spindle and a tool pipe, the scrapers are arranged in scraper grooves in the sleeve, one end of each scraper is connected with the tool pipe through the spindle to form a fixed rotation structure, diamond compacts are embedded in the outer edge of each scraper from top to bottom, both the lower end of the tool pipe and the lower end of the sleeve are connected with a drill rod connector, and the lower end of the drill rod connector is connected with a drill rod. The pipe-follow drilling chambering device increases construction speed of the gas extraction hole, and is an innovation of a soft broken coal bed gas extraction hole drilling device.
Description
Technical field
The utility model relates to coal mine gas drainage field, and particularly Counterboring apparatus is entered with pipe bit in a kind of soft and broken seam gas pumping hole.
Background technology
All the time, highly gassy mine gas pumping is the prerequisite of safety of coal mines High-efficient Production, is the key factor that realizes mine maximum economic benefit.At present, the spreading of gas pumping hole pore-forming general using drill bit and drilling rod is implemented to creep into operation, after pore-forming, boring is not carried out to any processing and just implement extraction technique.This pore-forming technique is relatively applicable to middle hard coal seam, and in soft and broken seam, often shows: 1., in drilling process, borehole stability is poor, the phenomenon of collapsing after boring before the normal appearance of hole wall, and hole quality is poor; 2. cave in because borehole wall is large-area, the passing away of boring mud is obstructed, and frequently occurs bit freezing, embraces and bore phenomenon, is difficult to realize deep well drilling, and drilling depth does not reach the requirement of design; 3. drilling tool (drilling rod, drill bit) exits after boring, and large-area caving in often appears in hole wall, has stopped up the passage of gushing out of gas, has had a strong impact on the extracting result of gas.Traditional way is to creep into design attitude to take out drilling tool, then setting of casing.But due to the poor stability of soft and broken seam boring, drilling tool just occurs collapse hole after taking out, cause sleeve pipe to be difficult to lower at the bottom of hole; Present stage, some scholars and R&D institution adopt and strengthen bore diameter, creeping into after predeterminated position, in the central passage of drilling tool, transfer sleeve pipe, this mode has solved to a certain extent sleeve pipe and has transferred difficulty not in place, not only rate of penetration is slow, and is difficult to carry out deep well drilling, and the gas pumping problem in work plane deep still exists.Therefore, develop the Counterboring apparatus entering with pipe bit in a kind of gas pumping hole and realize the crucial difficult problem that the method for the follow-up sleeve pipe while creeping into is solution soft and broken seam gas pumping efficiency, therefore improvement and bring new ideas is imperative.
Summary of the invention
For above-mentioned situation, for solving the defect of prior art, the object of the utility model is just to provide a kind of soft and broken seam gas pumping hole and enters Counterboring apparatus with pipe bit, can effectively solve the problem of gas pumping hole deep well drilling difficulty and pore-forming weak effect in soft and broken seam.
The technical scheme that the utility model solves is, comprise drill bit, drill bit connector, broad open and close member, sleeve pipe and drilling rod connector, drill bit and drill bit connector link together, drill bit connector is placed in sleeve pipe, sleeve pipe upper end crown cap, on drill bit connector, be set with spring, on spring, lower end is fixed by packing ring and top cap respectively, broad open and close member is placed in sleeve pipe, by a pair of scraper, axle and cutter pipe form, scraper is contained in the scraper groove in sleeve pipe, one end is connected with cutter pipe by axle, form fixing rotational structure, be inlaid with diamond compact from top to bottom along scraper external boundary, cutter pipe lower end, sleeve pipe lower end is connected with drilling rod connector respectively, drilling rod connector lower end is connected with drilling rod.
The utility model has effectively improved the speed of gas pumping hole construction, and cost-saving, gas pumping efficiency is high, easy to operate, and borehole stability is good, is the innovation on soft and broken seam gas pumping hole drill motion device.
Brief description of the drawings
Fig. 1 is the structural front view of the utility model scraper while opening.
Structural front view when Fig. 2 is the utility model scraper closure.
Fig. 3 is structure top view of the present utility model.
Fig. 4 is structure side view of the present utility model.
Fig. 5 is structure sectional view of the present utility model.
Fig. 6 is the sectional drawing of A-A in the utility model Fig. 4.
Fig. 7 is broad open and close member structure chart of the present utility model.
Fig. 8 is broad open and close member lateral view of the present utility model.
Fig. 9 is drill bit connector sectional drawing of the present utility model.
Figure 10 is drill bit connector top view of the present utility model.
Figure 11 is top of the present utility model cap sectional drawing.
Figure 12 is top of the present utility model cap top view.
Figure 13 is sleeve pipe front view of the present utility model.
Figure 14 is sleeve pipe sectional drawing of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.
Provided by Fig. 1-14, the utility model comprises drill bit, drill bit connector, broad open and close member, sleeve pipe and drilling rod connector, drill bit 1 links together with drill bit connector 9, drill bit connector 9 is placed in sleeve pipe 5, sleeve pipe 5 upper end crown caps 4, on drill bit connector 9, be set with spring 3, on spring 3, lower end is fixing by packing ring 2 and top cap 4 respectively, broad open and close member is placed in sleeve pipe 5, by a pair of scraper 6, axle 10 and cutter pipe 11 form, scraper 6 is contained in the scraper groove 16 in sleeve pipe 5, one end is connected with cutter pipe 11 by axle 10, form fixing rotational structure, be inlaid with diamond compact 7 from top to bottom along scraper 6 external boundaries, cutter pipe 11 lower ends, sleeve pipe 5 lower ends are connected with drilling rod connector 8 respectively, drilling rod connector 8 lower ends are connected with drilling rod.
In order to ensure result of use, there is cavity 14 at described drill bit connector 9 centers, there is the external screw thread matching with drill bit 1 upper end, together with drill bit 1 spinning, cavity 14 lower ends are conical, inside is embedded with rubber pad, when being stressed, drill bit 1 does the used time, the downward slippage of drill bit connector 9, cutter pipe 11 upper end tapering parts just in time insert inside and make it sealing, drilling fluid enters cutter pipe 11 successively by drilling rod inside, cavity 14, drill bit 1, enter cooling drill bit at the bottom of hole by drill bit 1 weep hole, wash boring, drill bit connector 9 middle part external surfaces form the symmetrical alternate stage body of opening, match with middle top cover 15 shapes of top cap 4, top cap 4 keeps drill bit connector 9 in the interior slip of sleeve pipe 5 on the one hand, be drill bit connector 9 transmitting torques on the other hand, drive drill bit 1 rotary drilling.
Described scraper 6 is concentric semicircles ring-type, top has the circular hole matching with axle 10, scraper 6 can freely rotate around axle 10, upper edge alignment is wedge angle outward, in the time that drill bit connector 9 presses to this wedge angle, rotate around axle 10, in lower edge alignment, be fillet, wedge angle facilitates scraper 9 in the time that axle 10 opens and closes, and by the scraper groove 16 in sleeve pipe 5, fillet is under the effect of scraper groove 16 inwalls, stop scraper 6 to launch excessive, while exiting drilling tool, under the effect of the inwall with pipe, scraper 6 recovers closure state smoothly.
The circle that described axle 10 is made for solid bearing steel, hardness is large, and abrasion resistance is strong, and when assembling broad open and close member, axle 10 two ends are each installs a clamp, the moving axially of fixed doctor 6.
Described cutter pipe 11 is hollow structure, there is cavity 13 inside, there is the external screw thread matching with drilling rod connector 8 lower end, upper end is the stage body matching with drill bit connector 9 lower ends, strengthen flushing liquor circulation effect, top is flat tubulose, for scraper 6 provides space in sleeve pipe 5, increase the contact area of scraper 6 and cutter pipe 11, in the time that scraper 6 is worked, strengthen its stability, be provided with the circular hole matching with axle 10 along flat direction, partial flushing liquid flows out around axle 10, enter in hole by scraper groove 16, be conducive to the flushing deslagging in Counterboring apparatus.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvement and replacement, these improvement and replacement also should be considered as protection domain of the present utility model.
Service condition of the present utility model is, 1) Counterboring apparatus of the present utility model is connected with drilling rod by drilling rod connector 8, and perforate is crept in enforcement gas hole reaming; 2) after perforate, exit drilling tool, scraper 6, in closure state, packs borehole wall-protection casing bit into; 3) carry out limit boring limit reaming, protection casing follows up immediately, the passage tap of boring mud between drilling rod and internal surface of sleeve pipe; 4) extension drill rod and sleeve pipe, carries out deep well drilling guard aperture; 5) reach after design attitude, stop rig and advance, scraper is returned to closure state, and rig drives drilling tool rotation to exit, and sleeve pipe is stayed guard aperture in hole.
The utility model is simple in structure, in soft and broken seam, realize the reaming while creeping into of gas hole, protection casing follows up immediately, prevent caving in of hole wall, boring mud passing away is provided simultaneously between internal surface of sleeve pipe and drilling rod, improve the degree of depth that rate of penetration and boring can reach, while dismantling drilling tool after pore-forming, scraper is in closure state, the simple and convenient drilling tool of extracting, effectively improve the speed of gas pumping hole construction, cost-saving, gas pumping efficiency is high, it is the innovation on soft and broken seam gas pumping hole drill motion device, there is good economic and social benefit.
Claims (5)
1. Counterboring apparatus is entered with pipe bit in a soft and broken seam gas pumping hole, comprise drill bit, drill bit connector, broad open and close member, sleeve pipe and drilling rod connector, it is characterized in that, drill bit (1) links together with drill bit connector (9), drill bit connector (9) is placed in sleeve pipe (5), sleeve pipe (5) upper end crown cap (4), on drill bit connector (9), be set with spring (3), on spring (3), lower end is fixing by packing ring (2) and top cap (4) respectively, broad open and close member is placed in sleeve pipe (5), by a pair of scraper (6), axle (10) and cutter pipe (11) form, scraper (6) is contained in the scraper groove (16) in sleeve pipe (5), one end is connected with cutter pipe (11) by axle (10), form fixing rotational structure, be inlaid with diamond compact (7) from top to bottom along scraper (6) external boundary, cutter pipe (11) lower end, sleeve pipe (5) lower end is connected with drilling rod connector (8) respectively, drilling rod connector (8) lower end is connected with drilling rod.
2. Counterboring apparatus is entered with pipe bit in soft and broken seam gas pumping according to claim 1 hole, it is characterized in that, there is cavity (14) at described drill bit connector (9) center, there is the external screw thread matching with drill bit (1) upper end, together with drill bit (1) spinning, cavity (14) lower end is conical, inside is embedded with rubber pad, drill bit connector (9) middle part external surface forms the symmetrical alternate stage body of opening, and matches with middle top cover (15) shape of top cap (4).
3. Counterboring apparatus is entered with pipe bit in soft and broken seam gas pumping according to claim 1 hole, it is characterized in that, described scraper (6) is concentric semicircles ring-type, top has the circular hole matching with axle (10), scraper (6) upper edge alignment is wedge angle outward, in lower edge alignment, is fillet.
4. Counterboring apparatus is entered with pipe bit in soft and broken seam gas pumping according to claim 1 hole, it is characterized in that the circle that described axle (10) is made for solid bearing steel.
5. Counterboring apparatus is entered with pipe bit in soft and broken seam gas pumping according to claim 1 hole, it is characterized in that, described cutter pipe (11) is hollow structure, there is cavity (13) inside, there is the external screw thread matching with drilling rod connector (8) lower end, upper end is the stage body matching with drill bit connector (9) lower end, and top is flat tubulose, is provided with the circular hole matching with axle (10) along flat direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420045151.4U CN203685037U (en) | 2014-01-24 | 2014-01-24 | Pipe-follow drilling chambering device of soft broken coal bed gas extraction hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420045151.4U CN203685037U (en) | 2014-01-24 | 2014-01-24 | Pipe-follow drilling chambering device of soft broken coal bed gas extraction hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685037U true CN203685037U (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420045151.4U Expired - Fee Related CN203685037U (en) | 2014-01-24 | 2014-01-24 | Pipe-follow drilling chambering device of soft broken coal bed gas extraction hole |
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|---|---|
| CN (1) | CN203685037U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726791A (en) * | 2014-01-24 | 2014-04-16 | 河南理工大学 | Pipe-following drilling reaming device for gas extraction holes in soft broken coal bed |
| CN106988776A (en) * | 2017-03-30 | 2017-07-28 | 河南理工大学 | Soft and broken seam drilling guard aperture construction method |
| CN107075929A (en) * | 2014-12-30 | 2017-08-18 | 哈利伯顿能源服务公司 | Excite activation system more |
| CN107401375A (en) * | 2017-08-21 | 2017-11-28 | 福建亿钻机械有限公司 | A kind of directional drilling machine of detectable drilling rod installation situation and method of getting into the cave |
-
2014
- 2014-01-24 CN CN201420045151.4U patent/CN203685037U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726791A (en) * | 2014-01-24 | 2014-04-16 | 河南理工大学 | Pipe-following drilling reaming device for gas extraction holes in soft broken coal bed |
| CN103726791B (en) * | 2014-01-24 | 2016-03-30 | 河南理工大学 | Soft and broken seam gas pumping hole pipe-following drilling Counterboring apparatus |
| CN107075929A (en) * | 2014-12-30 | 2017-08-18 | 哈利伯顿能源服务公司 | Excite activation system more |
| CN106988776A (en) * | 2017-03-30 | 2017-07-28 | 河南理工大学 | Soft and broken seam drilling guard aperture construction method |
| CN107401375A (en) * | 2017-08-21 | 2017-11-28 | 福建亿钻机械有限公司 | A kind of directional drilling machine of detectable drilling rod installation situation and method of getting into the cave |
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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: 20140702 Termination date: 20170124 |
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| CF01 | Termination of patent right due to non-payment of annual fee |