CN203835316U - Large-aperture bit extractor - Google Patents
Large-aperture bit extractor Download PDFInfo
- Publication number
- CN203835316U CN203835316U CN201420258544.3U CN201420258544U CN203835316U CN 203835316 U CN203835316 U CN 203835316U CN 201420258544 U CN201420258544 U CN 201420258544U CN 203835316 U CN203835316 U CN 203835316U
- Authority
- CN
- China
- Prior art keywords
- hollow structure
- salvaging
- tool joint
- drill
- large diameter
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a large-aperture bit extractor which comprises an extraction core taking sleeve arranged on a drill pipe and a drill joint. The extraction core taking sleeve is of a hollow cylinder structure with an open end, one end, with the end face, of the extraction core taking sleeve is arranged on the outer circumference of the drill pipe, and a sleeve edge alloy cutter is arranged on the portion, at the open end of the cylinder, of the sleeve; the outer circumference of the drill joint is of a cone and cylinder combined structure, a hollow structure is arranged in the drill joint, screw threads are arranged on the upper portion of the hollow structure, the lower portion of the hollow structure is provided with a drill hook fixed through a pin shaft, the drill joint is connected with the end face of the drill pipe through the screw threads, a cylinder of the drill joint is provided with an open groove, the drill hook is movably connected with the pin shaft as the rotation axis, and the open groove and the lower portion of the hollow structure serve as a rotation space. The large-aperture bit extractor is simple in structure, is integrally designed, easy to machine, assemble and store, light, safe to use, low in power requirement, easy to operate and control and capable of being used for easily extracting bits at shaft bottoms.
Description
Technical field
The utility model relates to a kind of large diameter bit fisher, is mainly used in the salvaging of drill bit.
Background technology
Dark big diameter borehole in colliery and the mine application of non-coal mining, particularly pit mining more.General bore diameter is at Φ 800～1300mm, and the degree of depth, at 400m～900m, is installed the steel pipe of Φ 630mm～Φ 1000mm × 18mm, is the passage that connects ground and down-hole.As the ground gas pumping of going into the well, drainage channel, emergency management and rescue, mass transport and other middle-size and small-size pit shaft, all use wellbore construction, and because it is subject to the impact in geological hydrology condition, place less, and personnel are few, efficiency is high, so extensive use.But the dark big diameter borehole bore of special sinking shaft is large, boring is dark, the complex formation of wearing, particularly old mining area, Construction unit all extremely feels embarrassed in the time determining position, hole, and when construction, uncertain factor is a lot, very risky.There are tomography, fragmentation, there is goaf, hard formation, especially limestone, quartz sandstone stratum, part is siliceous and sparring is cementing, rock stratum is very hard, and geological conditions is extremely complicated, and while creeping into, drilling tool and bit bounce are violent, vibration is frequent, often cause bolt fracture from flange connections bolt fatigue, cause combination type drill bit to drop in shaft bottom, thereby cannot creep into.
Being engaged in the professional person who drills all knows: fall drilling tool and drill bit and be very normal thing, hard to guard against, this is also a hearty cord that is perplexing the personnel of drilling.How can the drill bit that falls into shaft bottom be fished for accurately? some drilling depths exceed 700m, even darker, and weight is in 600kg left and right.Will precisely fish for its difficulty of drill bit well imagines in so dark place! Moreover drill bit own wt is very light, only the weight of drilling rod is exactly that drill bit weight reaches 30 times, perception whether to fish for its difficulty of drill bit very large.In the time creeping into deep, a drilling tool will consuming timely reach 16～24 hours back and forth, and the most of the time has all been consumed on the non-cutting times such as drilling, if salvage not come up, cannot creep into.Must run drilling tool many times, the boring having in the past consumes upper several days in the time salvaging shaft bottom drill bit, even the longer time, the even boring having is scrapped, and exhausts the people and drains the treasury, and has wasted manpower and materials, seriously restrict drilling efficiency, increased many hidden danger to safety in production, also affected duration and image simultaneously.
Technician has carried out risk analysis and assessment to the work progress of dark big diameter borehole, find: the hell footpath of going into the well, dark heavy caliber ground is large, the area that its broken rock cutting is crept in full section or classification is still larger, creep into middle drilling tool and beat and cause metal fatigue to cause drill bit to come off in shaft bottom, make to creep into and cannot carry out, as crept into by force, progress is slow, occur that moment of torsion strengthens, the sound is abnormal, even can cause even more serious accident.Come off for preventing drill bit, prior art is mainly to reinforce on the one hand the fixing that drilling tool connects, and develops on the other hand the special-purpose fisher that machined needles comes off to drill bit, but so far, having no can light use, effective, safely bit-fishing unit easy to operate and simple in structure.
Summary of the invention
For solving problems of the prior art, the purpose of this utility model is to provide a kind of simple in structure, light use, effective, the easy-operating large diameter bit fisher of safety.
For achieving the above object, the technological means that the utility model is taked is: a kind of large diameter bit fisher, and by being arranged on, core sleeve is got in salvaging on drilling rod and tool joint forms; The hollow cylinder body structure that core sleeve is an end opening is got in described salvaging, and one end that core sleeve band end face is got in salvaging is arranged on the excircle of drilling rod, is provided with sleeve pipe bead alloy knife on the sleeve pipe of cylinder openend; Described tool joint excircle is circular cone and cylinder combining structure, hollow structure is set in tool joint, hollow structure top arranges screw thread, hollow structure bottom is provided with the brill hook fixing by bearing pin, tool joint by screwed connection on drilling rod end face, on tool joint cylinder, be provided with open slot, bore hook and be flexibly connected taking bearing pin as rotating shaft, and taking open slot and hollow structure bottom as revolution space.
Further, described salvaging is got between core sleeve inner periphery and drilling rod and is also provided with and makes both concentric flange terminal pads being connected.
Further, that described salvaging corer is selected is seamless, the one of spiral or ERW, and when its diameter is less than 50mm, thickness of steel pipe arranges 18mm.
Further, described bead alloy knife adopts carbide alloy.
Further, upper end, hollow structure bearing pin permanent position deviates from open slot position and is welded with limiting plate in described tool joint.
Further, described limiting plate is a thick 50mm steel plate of 40*40mm.
The beneficial effects of the utility model are: this device structure is simple, and integrated design is easy to processing and keeping, is also convenient to assembling; Whole light, less demanding to dynamical system, uses safety; The cooperation salvaging drill bit that can get easily core sleeve and tool joint by salvaging, operation is controlled simple.
Brief description of the drawings
Below in conjunction with view and case study on implementation, the utility model is described in detail.
Fig. 1 is that the utility model is salvaged drill bit schematic diagram;
Fig. 2 is structural representation of the present utility model.
In figure: 1, salvage and get core sleeve, 2, tool joint, 3, bore hook, 4, bead alloy knife, 5, flange terminal pad, 6, drilling rod, 7, limiting plate, 8, bit body.
Detailed description of the invention
A kind of large diameter bit fisher as shown in Figure 1 and Figure 2, by being arranged on, core sleeve 1 is got in salvaging on drilling rod and tool joint 2 forms; The hollow cylinder body structure that core sleeve 1 is an end opening is got in described salvaging, and salvaging is got core sleeve 1 and is arranged on one end of end face on the excircle of drilling rod 6, is provided with sleeve pipe bead alloy knife 4 on the sleeve pipe of cylinder openend; Described tool joint 2 excircles are circular cone and cylinder combining structure, the interior hollow structure that arranges of tool joint 2, hollow structure top arranges screw thread, hollow structure bottom is provided with the brill hook 3 fixing by bearing pin, tool joint 2 by screwed connection on drilling rod 6 end faces, on tool joint 2 cylinders, be provided with open slot, bore hook 3 and be flexibly connected taking bearing pin as rotating shaft, and taking open slot and hollow structure bottom as revolution space.
Described salvaging is got between core sleeve 1 inner periphery and drilling rod 6 and is also provided with and makes both concentric flange terminal pads 5 being connected.
That described salvaging corer 1 is selected is seamless, the one of spiral or ERW, and when its diameter is less than 50mm, thickness of steel pipe arranges 18mm.
Described bead alloy knife 4 adopts carbide alloy.
On described flange terminal pad 5, be provided with δ 30mm reinforcing rib.
Upper end, the interior hollow structure bearing pin permanent position of described tool joint 2 deviates from open slot position and is welded with limiting plate 7.
Described limiting plate 7 is a thick 50mm steel plate of 40*40mm.
Described salvaging is got core sleeve 1 and can be selected suitable size pipe to carry out processing and fabricating according to bore diameter size; Described tool joint 2 is selected the joint of same model screwed connection according to construction tool joint screwed connection model used, be convenient to fisher connecting rod to be installed to drilling tool lower end; Described brill hook 3 is exactly to utilize brill hook to enter when automatically opening under partical gravity effect in bit body and carrying on salvaging drilling tool can hook two in bit body 8, realizes the key of salvaging; Described bead alloy knife 4 is exactly to arrange that at sleeve pipe lower nozzle carbide alloy is for boring the ironwares such as the stuck bolt of broken bit body periphery; Described flange terminal pad 5 is welded to connect sleeve pipe and tool joint securely integral and keeps concentricity exactly, is all welded to connect, and guarantees firmly.
Described salvaging is got core sleeve 1 and can be selected suitable size pipe to carry out processing and fabricating according to bore diameter size, be generally less than bore diameter 50mm, thickness of steel pipe 18mm, can be that seamless, spiral or ERW all can, lower port is beaten groove at 45 °, is convenient to extract the bit body upper end of dropping.
Described tool joint 2 should be selected according to construction tool joint screwed connection model used the joint of same model screwed connection, be convenient to fisher connecting rod to be installed to drilling tool lower end, if drilling rod bottom is 411(public affairs) button-type, fisher joint is mother 410() button-type; Also right conversely; If drilling rod bottom is 311(public affairs) button-type, fisher joint is mother 310() button-type; Also right conversely.
Described brill hook 3 is exactly to utilize brill hook to enter when automatically opening under partical gravity effect in bit body and carrying on salvaging drilling tool can hook two in bit body 8, realize the key of salvaging etc., No. 45 steels of the general Ф of employing 45mm are done, bottom chain connection, in setting range, guarantee to rotate, realize free closure, open voluntarily, a thick 50mm steel plate of 40*40mm of interior upper end welding is made limiting plate.
Described bead alloy knife 4 is exactly to arrange that at sleeve pipe lower nozzle YG8 carbide alloy, for cutting ironwares such as smashing the stuck bolt of bit body periphery, plays the effect of loosening bit body, adopts gas welding copper to connect.
Described flange terminal pad 5 is exactly that sleeve pipe and tool joint are welded to connect securely integral and keep concentricity, adopts T506 welding rod to be welded to connect, and guarantees firmly.
When work, fisher is connected on drilling tool, is lowered to boring accidents head position and creeps into, and according to the degree of depth of accident head and this cover drilling tool length, calculates the residual chi on turntable surface top, guarantees the degree of depth errorless trip-out that coincide, and pays close attention to the variation of draw-bar donamometer and electric current simultaneously.This device structure is simple, and integrated design is easy to processing and keeping, is also convenient to assembling; Whole light, less demanding to dynamical system, uses safety; The cooperation salvaging drill bit that can get easily core sleeve and tool joint by salvaging, operation is controlled simple.
Claims (7)
1. a large diameter bit fisher, is characterized in that: by being arranged on, core sleeve (1) is got in salvaging on drilling rod (6) and tool joint (2) forms; The hollow cylinder body structure that core sleeve (1) is an end opening is got in described salvaging, and salvaging is got core sleeve (1) and is arranged on one end of end face on the excircle of drilling rod (6), is provided with sleeve pipe bead alloy knife (4) on the sleeve pipe of cylinder openend; Described tool joint (2) excircle is circular cone and cylinder combining structure, tool joint arranges hollow structure in (2), hollow structure top arranges screw thread, hollow structure bottom is provided with the brill hook (3) fixing by bearing pin, tool joint (2) by screwed connection on drilling rod (6) end face, on tool joint (2) cylinder, be provided with open slot, bore hook (3) and be flexibly connected taking bearing pin as rotating shaft, and taking open slot and hollow structure bottom as revolution space.
2. large diameter bit fisher according to claim 1, is characterized in that: described salvaging is got between core sleeve (1) inner periphery and drilling rod (6) and is also provided with and makes both concentric flange terminal pads (5) being connected.
3. large diameter bit fisher according to claim 1, is characterized in that: described salvaging corer (1) is selected the one of seamless, spiral or ERW, and when its diameter is less than 50mm, thickness of steel pipe arranges 18mm.
4. large diameter bit fisher according to claim 1, is characterized in that: described bead alloy knife (4) adopts carbide alloy.
5. large diameter bit fisher according to claim 2, is characterized in that: on described flange terminal pad (5), be provided with Φ 30mm reinforcing rib.
6. large diameter bit fisher according to claim 1, is characterized in that: upper end, the interior hollow structure bearing pin permanent position of described tool joint (2) deviates from open slot position and is welded with limiting plate (7).
7. large diameter bit fisher according to claim 6, is characterized in that: described limiting plate (7) is a thick 50mm steel plate of 40*40mm.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420258544.3U CN203835316U (en) | 2014-05-20 | 2014-05-20 | Large-aperture bit extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420258544.3U CN203835316U (en) | 2014-05-20 | 2014-05-20 | Large-aperture bit extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203835316U true CN203835316U (en) | 2014-09-17 |
Family
ID=51513173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420258544.3U Withdrawn - After Issue CN203835316U (en) | 2014-05-20 | 2014-05-20 | Large-aperture bit extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203835316U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953306A (en) * | 2014-05-20 | 2014-07-30 | 中煤特殊凿井有限责任公司 | Large-caliber bit fisher |
-
2014
- 2014-05-20 CN CN201420258544.3U patent/CN203835316U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953306A (en) * | 2014-05-20 | 2014-07-30 | 中煤特殊凿井有限责任公司 | Large-caliber bit fisher |
| CN103953306B (en) * | 2014-05-20 | 2016-09-07 | 中煤特殊凿井有限责任公司 | A kind of large diameter bit fisher |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140917 Effective date of abandoning: 20160907 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |