CN202360029U - Novel concentric tube drill - Google Patents
Novel concentric tube drill Download PDFInfo
- Publication number
- CN202360029U CN202360029U CN2011204133536U CN201120413353U CN202360029U CN 202360029 U CN202360029 U CN 202360029U CN 2011204133536 U CN2011204133536 U CN 2011204133536U CN 201120413353 U CN201120413353 U CN 201120413353U CN 202360029 U CN202360029 U CN 202360029U
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- pin
- hole
- concentric
- guider
- pinned
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Abstract
The utility model discloses a novel concentric tube drill, comprising a centralizer connected to an impactor. The centralizer is provided with a shaft pin hole, which is in parallel with the centralizer in an axial direction. At least two concentric hole enlargers are inserted into the shaft pin holes of the centralizer from one end of the shaft pin. The other end of the shaft pin is fixedly connected to the concentric hole enlarger. The centralizer is provided with a first pin-penetrating hole in a radial direction. Each shaft pin is provided with a second pin-penetrating hole or a pin-penetrating groove, corresponding to the first pin-penetrating hole. A penetrating pin penetrates through the first pin-penetrating hole of the centralizer and extends into the second pin-penetrating hole or pin-penetrating groove, enabling the shaft pin to connect the centralizer and the concentric hole enlarger into one piece. The novel concentric tube drill is advantageous in that transmission capability is better; crushing effect is further improved; good discharging effect is possessed; the structure is simple and the cost is low.
Description
Technical field
The utility model relates to dark, the broken counterbore construction of shallow bore hole of correlation engineering such as mine, water conservancy, highway, railway, prospecting, water power; Be applicable to rigs such as rock core spindle drill, jumbolter; Be used for geological mapping and get fields such as paying in advance of core, hazard management, deep foundation ditch, the anchoring of high slope accumulation horizon, Tunnel Landslide pipe shed support, influent well protected, boulder bed high-pressure rotary-spray, basement, exactly relate to a kind of novel concentric simultaneous casing drilling tool.
Background technology
Existing eccentric casing drilling tool mainly contains two kinds of two-piece-dress and three-pieces, and the Two Piece Set drilling tool mainly is made up of the guider of multidiameter shape and the off-balance bit that is installed on the guider with attachment pegs; Transmit whole moments of torsion because attachment pegs is born in drilling process, and attachment pegs places the cylinder position of the pin-and-hole and the guider of off-balance bit, there is the gap in three's matching part; In drilling process, be easy to wear and tear even rub, cause drill bit to drop, drilling tool failure; In addition, owing to there is not the center bit guide-localization, boring is prone to tiltedly; Therefore, the eccentric casing drilling tool technology of two-piece-dress has been on the verge of to eliminate the edge.
Three-piece drilling tool is mainly by the guider of multidiameter shape, and with center-pole and the center bit that the centre bore of guider is threaded, the eccentric reaming drill bit that is sleeved on the center-pole of center bit constitutes.The center bit of this structure and the screw thread pair between the guider are born the whole moment of torsion that transmits center bit and eccentric reaming drill bit, and be high to Materials And Process Requirement, makes difficulty.In addition,, need often counter-rotating, discharge the rock slag, in case bury drills because drill bit in the course of the work.Therefore, be threaded when having the drilling tool counter-rotating and free, and the hidden danger that causes drill bit to drop; Simultaneously, in the prior art, adopt single eccentric reaming; Such drilling tool transfer torque poor-performing, it is unreliable to connect, and has hidden danger such as drill bit drops; The folk prescription crushing performance of single eccentric reaming is relatively poor, and discontinuity increases the mechanical performance resistance of impact; Cause the drilling tool wearing and tearing very fast, efficiency of construction is low, so cost is higher.
Publication number is CN201460714; The Chinese patent file that open day is on May 12nd, 2010 discloses a kind of eccentric casing drilling tool; Comprise the guider that is connected with impactor; Said guider axially on have at least two pin holes; Bottom drill bit and at least two eccentric reaming devices are all allocated in the pin hole on the said guider through pivot pin, and the eccentric reaming device has first pinned hole in the radial direction of said bottom drill bit and guider between said guider and bottom drill bit; Be positioned at the pairing position of first pinned hole on each pivot pin and have second pinned hole, wear in first pinned hole that pin penetrates said bottom drill bit and guider and stretch to said second pinned hole.The utility model adopts broken simultaneously in many ways, and is stressed even, reduces the impulse machine resistance; Deslagging is unimpeded; Circumference is broken feels relieved, and the drilling rod of rig, sleeve pipe follow-up are speeded up, and while reamer open mode is transfer torque voluntarily; Adopt multiaxis suspension conjoined structure, solved the hidden danger that single eccentric reaming device drops.
Technique scheme is the patent documentation that the applicant is applied for before, but in actual use, finds that still there is following defective in it:
1, transmission capacity shortcoming, because of guider power transmission to reamer again by reamer power transmission to bottom drill bit, cause transmission capacity to weaken.
2, crushing effect is poor slightly, because of bottom drill bit and reamer not at same work plane, meshing gold can not play one's part to the full.
3, the deslagging effect is poor slightly, three-piece form of structure, and pitch-row is long, and reamer has pressure release, has increased the air-flow distance, thereby the deslagging weak effect.
4, structure more complicated, cost is than higher.
The utility model content
For solving the problems of the technologies described above; The utility model provides a kind of rigs such as rock core spindle drill, jumbolter that are applicable to, be used for the novel concentric simultaneous casing drilling tool that geological mapping is got fields such as paying in advance of core, hazard management, deep foundation ditch, the anchoring of high slope accumulation horizon, Tunnel Landslide pipe shed support, influent well protected, boulder bed high-pressure rotary-spray, basement, the utility model transmission capacity is better; Crushing effect is further enhanced; And it is have deslagging effect preferably, and simple in structure, with low cost.
Simultaneously, the utility model adopts broken simultaneously in many ways, and is stressed even; Reduce the impulse machine resistance, deslagging is unimpeded, and circumference is broken feels relieved; Drilling rod, the sleeve pipe follow-up of rig are speeded up; While reamer open mode is transfer torque voluntarily, adopts multiaxis suspension conjoined structure, has solved the hidden danger that single concentric reamer drops.
The utility model is realized through following technical proposals:
A kind of novel concentric simultaneous casing drilling tool; Comprise the guider that is connected with impactor; It is characterized in that: said guider axially on have at least two pin holes that are evenly distributed on the guider central periphery; Pin hole and guider axially parallel are provided with; At least two concentric reamers are allocated in the pin hole on the said guider through pivot pin one end, and the other end of pivot pin is fixedly connected with said concentric reamer, have first pinned hole in the radial direction of guider; Be positioned at the pairing position of first pinned hole on each pivot pin and have second pinned hole or wear cotter way, wear in first pinned hole that pin penetrates said guider and stretch to said second pinned hole or wear cotter way said pivot pin is fused guider and reamer with one heart.
Be provided with the expansion pin with the first pinned hole interference fit in said first pinned hole, wear pin and expansion pin and penetrate successively in said first pinned hole, wear the pin and the first pinned hole matched in clearance.
Said pin hole is three, and the concentric reamer that matees with pin hole also is three, has one second pinned hole on each pivot pin or wears cotter way, matches with first pinned hole.
Said pin hole is two, and the concentric reamer that matees with pin hole also is two, has one second pinned hole on each pivot pin or wears cotter way, matches with first pinned hole.
Said pin hole is four, and the concentric reamer that matees with pin hole also is four, has one second pinned hole on each pivot pin or wears cotter way, matches with first pinned hole.
Said a plurality of concentric reamer closes up full circle cylinder of formation after opposite spin; Open the self-locking shape that forms mutual transfer torque after the positive direction rotation, a plurality of concentric reamer after opening rotatablely moves the diameter of the circumference that forms greater than the diameter of said guider through positive direction.
The work plane of said concentric reamer is provided with carbide alloy.
The center of said guider has pore, and pin hole is opened in the peripheral of said pore and laterally arranges with said pore.
Compare for the CN201460714 patent documentation with publication number, the advantage of the utility model shows:
1, because the utility model adopts " on guider, have pin hole, reamer is allocated in the pin hole on the said guider through pivot pin one end with one heart, and the other end of pivot pin is fixedly connected with concentric reamer; the radial direction at guider has first pinned hole, is positioned at the pairing position of first pinned hole on each pivot pin and has second pinned hole or wear cotter way, wears in first pinned hole that pin penetrates said guider and stretch to said second pinned hole or wear cotter way said pivot pin is fused guider and concentric reamer " such technical scheme; The utility model is owing to removed the bottom drill bit; Thereby transmission capacity is better, and carbide alloy is on the same work plane with concentric reamer, thereby crushing effect is further enhanced; And owing to removed the bottom drill bit; Pitch-row is short, and reamer has the pressure release function to shorten the air-flow distance, thereby has deslagging effect preferably; And it is simple in structure, with low cost.
Simultaneously, adopt at least two concentric reamers from both direction is broken simultaneously at least, stressed even; Reduce the impulse machine resistance, deslagging is unimpeded, and circumference is broken feels relieved; Drilling rod, the sleeve pipe follow-up of rig are speeded up, and while reamer open mode is transfer torque voluntarily, the structure that adopts a plurality of pivot pins suspensions that guider, concentric reamer and bottom drill bit are fused; Solved the problem that the concentric reamer of existing list drops easily; The concentric drilling tool construction of competitive list, effect improves more than 80%, and cost reduces more than 60%.
2, because the utility model adopts " in first pinned hole, be provided with the expansion pin with the first pinned hole interference fit; wear pin and expansion pin and penetrate successively in said first pinned hole, wear the pin and the first pinned hole matched in clearance " such technical scheme, compared with prior art; Wearing pin penetrates first pinned hole and second pinned hole or wears cotter way and make pivot pin suspension; Expansion pin penetrates in first pinned hole again, even violent for a long time shake when drilling tool moves can not make expansion pin come off yet; Guaranteed the fixing that is connected of guider, concentric reamer and bottom drill bit, thus the technical problem of thoroughly avoiding concentric reamer and drill bit to drop easily.
3, because the utility model adopts " three pivot pins and three concentric reamers " broken simultaneously from three directions, stressed even, firm; Power increases substantially, and reduces the impulse machine resistance, and deslagging is unimpeded; Circumference is broken feels relieved, and the drilling rod of rig, sleeve pipe follow-up are speeded up, and the drilling tool wearing and tearing are slow; Efficiency of construction is high, so cost reduces.While reamer open mode is transfer torque voluntarily, and the structure that adopts three pivot pins suspensions that guider, concentric reamer are fused has solved the problem that the concentric reamer of existing list drops easily.
4, because the work plane of the concentric reamer of the utility model is provided with carbide alloy, can reduce the wearing and tearing of concentric reamer, prolong the application life of drilling tool.
Description of drawings
To combine the Figure of description and the specific embodiment that the utility model is done further to specify below, wherein:
Fig. 1 is the structural representation of the utility model after opening
Fig. 2 is the structural representation of the utility model after closing
Fig. 3 is the structural representation of concentric reamer
Fig. 4 is the structural representation of guider
Mark among the figure:
1, guider, 2, pin hole, 4, reamer with one heart, 5, pivot pin, 11, first pinned hole, 6, second pinned hole or wear cotter way, 7, wear pin, 8, expansion pin, 9, carbide alloy, 10, pore.
The specific embodiment
Embodiment 1
The utility model comprises the guider that is connected with impactor; Said guider axially on have at least two pin holes that are evenly distributed on the guider central periphery; Pin hole and guider axially parallel are provided with; At least two concentric reamers are allocated in the pin hole on the said guider through pivot pin one end; The other end of pivot pin is fixedly connected with said concentric reamer; Radial direction at guider has first pinned hole, is positioned at the pairing position of first pinned hole on each pivot pin and has second pinned hole or wear cotter way, wears in first pinned hole that pin penetrates said guider and stretch to said second pinned hole or wear cotter way said pivot pin is fused guider and reamer with one heart.
Embodiment 2
Preferred forms as the utility model; On the basis of embodiment 1,, be provided with expansion pin in said first pinned hole with the first pinned hole interference fit with reference to Figure of description 1-4; Wear pin and expansion pin and penetrate successively in said first pinned hole, wear the pin and the first pinned hole matched in clearance.Said pin hole is three, and the concentric reamer that matees with pin hole also is three, has one second pinned hole on each pivot pin or wears cotter way, matches with first pinned hole.Said a plurality of concentric reamer closes up full circle cylinder of formation after opposite spin; Open the self-locking shape that forms mutual transfer torque after the positive direction rotation, a plurality of concentric reamer after opening rotatablely moves the diameter of the circumference that forms greater than the diameter of said guider through positive direction.The work plane of said concentric reamer is provided with carbide alloy.The center of said guider has pore, and pin hole is opened in the peripheral of said pore and laterally arranges with said pore.
The utility model is not limited to the foregoing description, and according to the description of the foregoing description, those of ordinary skill in the art also can make some conspicuous changes, but these changes all should fall within the protection domain of the utility model claim.
Claims (8)
1. novel concentric simultaneous casing drilling tool; Comprise the guider that is connected with impactor; It is characterized in that: said guider axially on have at least two pin holes that are evenly distributed on the guider central periphery; Pin hole and guider axially parallel are provided with; At least two concentric reamers are allocated in the pin hole on the said guider through pivot pin one end, and the other end of pivot pin is fixedly connected with said concentric reamer, have first pinned hole in the radial direction of guider; Be positioned at the pairing position of first pinned hole on each pivot pin and have second pinned hole or wear cotter way, wear in first pinned hole that pin penetrates said guider and stretch to said second pinned hole or wear cotter way said pivot pin is fused guider and reamer with one heart.
2. novel concentric simultaneous casing drilling tool according to claim 1; It is characterized in that: be provided with expansion pin in said first pinned hole with the first pinned hole interference fit; Wear pin and expansion pin and penetrate successively in said first pinned hole, wear the pin and the first pinned hole matched in clearance.
3. novel concentric simultaneous casing drilling tool according to claim 1 and 2; It is characterized in that: said pin hole is three; Also be three with the concentric reamer of pin hole coupling, have one second pinned hole on each pivot pin or wear cotter way, match with first pinned hole.
4. novel concentric simultaneous casing drilling tool according to claim 1 and 2; It is characterized in that: said pin hole is two; Also be two with the concentric reamer of pin hole coupling, have one second pinned hole on each pivot pin or wear cotter way, match with first pinned hole.
5. novel concentric simultaneous casing drilling tool according to claim 1 and 2; It is characterized in that: said pin hole is four; Also be four with the concentric reamer of pin hole coupling, have one second pinned hole on each pivot pin or wear cotter way, match with first pinned hole.
6. novel concentric simultaneous casing drilling tool according to claim 3; It is characterized in that: said a plurality of concentric reamers close up full circle cylinder of formation after opposite spin; Open the self-locking shape that forms mutual transfer torque after the positive direction rotation, a plurality of concentric reamer after opening rotatablely moves the diameter of the circumference that forms greater than the diameter of said guider through positive direction.
7. novel concentric simultaneous casing drilling tool according to claim 3 is characterized in that: the work plane of said concentric reamer is provided with carbide alloy.
8. novel concentric simultaneous casing drilling tool according to claim 3 is characterized in that: the center of said guider has pore, and pin hole is opened in the peripheral of said pore and laterally arranges with said pore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204133536U CN202360029U (en) | 2011-10-26 | 2011-10-26 | Novel concentric tube drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204133536U CN202360029U (en) | 2011-10-26 | 2011-10-26 | Novel concentric tube drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202360029U true CN202360029U (en) | 2012-08-01 |
Family
ID=46571221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204133536U Expired - Fee Related CN202360029U (en) | 2011-10-26 | 2011-10-26 | Novel concentric tube drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202360029U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790519A (en) * | 2014-02-17 | 2014-05-14 | 广汉市井管厂 | Centrifugal flail block casing drilling tool and assembly method thereof |
| CN104018781A (en) * | 2014-06-13 | 2014-09-03 | 武穴市金箭机械有限责任公司 | Symmetric double-eccentric block reamer bit |
-
2011
- 2011-10-26 CN CN2011204133536U patent/CN202360029U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790519A (en) * | 2014-02-17 | 2014-05-14 | 广汉市井管厂 | Centrifugal flail block casing drilling tool and assembly method thereof |
| CN103790519B (en) * | 2014-02-17 | 2015-12-30 | 广汉市井管厂 | A kind of centrifugal block for clutch use casing drilling tool and assembly method thereof |
| CN104018781A (en) * | 2014-06-13 | 2014-09-03 | 武穴市金箭机械有限责任公司 | Symmetric double-eccentric block reamer bit |
| CN104018781B (en) * | 2014-06-13 | 2017-02-15 | 武穴市金箭机械有限责任公司 | Symmetric double-eccentric block reamer bit |
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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: 20120801 Termination date: 20141026 |
|
| EXPY | Termination of patent right or utility model |