CN2356137Y - Drilling device for central hole enlarging sleeve follow-up down-the-hole hammer drill - Google Patents
Drilling device for central hole enlarging sleeve follow-up down-the-hole hammer drill Download PDFInfo
- Publication number
- CN2356137Y CN2356137Y CN 98248208 CN98248208U CN2356137Y CN 2356137 Y CN2356137 Y CN 2356137Y CN 98248208 CN98248208 CN 98248208 CN 98248208 U CN98248208 U CN 98248208U CN 2356137 Y CN2356137 Y CN 2356137Y
- Authority
- CN
- China
- Prior art keywords
- bore bit
- sleeve
- reaming
- drill bit
- hole
- 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 - Fee Related
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- Earth Drilling (AREA)
Abstract
The utility model relates to a ground drilling device, particularly a drilling device for a central hole enlarging sleeve follow-up down-hole hammer drill, wherein two shoulder rings capable of simultaneously impacting a hollow drill bit and a sleeve shoe are arranged on the periphery of a central drill bit; screw threads capable of being connected with a sleeve are arranged on the sleeve shoe; the internal diameter of a hole enlarging hollow drill bit is provided with a groove key which can be connected and locked with an outer ring groove of the central drill bit; a locking hang ring is in an opening structure, and the hole enlarging hollow drill bit and the sleeve shoe are fixed together by the locking hang ring and a rectangular groove at the back part of the hole enlarging hollow drill bit through a shrinking sleeve. The utility model has the characteristics of easy locking and connection, effective slag discharge in the sleeve, low rotary torque when in use, high drilling speed, low cost, etc., and a drill rod can be easily tripped and taken out without blocking a drill.
Description
The utility model relates to the rig in the engineering machinery, especially a kind of heart reaming sleeve pipe follow-up down-the-hole hammer drill is advanced equipment.
Existing down-the-hole hammer drill advances equipment, and eccentric reaming bore bit commonly used when promoting drilling rod in boring, is difficult for proposing because the inclined to one side body of eccentric bore bit may block casing shoe, is easy to generate bit freezing or underground drilling accident; And drilling speed is unhappy, and required torque is bigger, and cost is higher, is difficult to pore-forming at bad ground.
The purpose of this utility model is to provide a kind of heart reaming sleeve pipe follow-up down-the-hole hammer drill is advanced equipment, can be with sleeve pipe follow-up boring, overcomes easy bit freezing phenomenon, to solve the problem that is difficult to pore-forming at some bad grounds.
The purpose of this utility model is achieved in that and comprises down-the-hole hammer center bore bit, casing shoe, the hollow bore bit of reaming and locking suspension ring etc., wherein on the Zhou Jing of center bore bit, there are twice can impact the shoulder ring of hollow bore bit and casing shoe simultaneously, in the bore bit body of center steam vent is arranged, external diameter has the deslagging groove; The screw thread that can connect with sleeve pipe is arranged on the casing shoe; The internal diameter of the hollow bore bit of reaming is provided with sunk key, can connect locking with the outer shroud groove of center bore bit; The locking suspension ring are hatch frame and have elasticity that with the rectangle annular groove at the hollow bore bit of reaming rear portion, cover is fixed on one to hollow bore bit of reaming and casing shoe by contracting.
Elaborate the utility model below in conjunction with accompanying drawing.
Fig. 1 is the external view that heart reaming sleeve pipe follow-up down-the-hole hammer drill is advanced equipment;
Fig. 2 is the exploded view that heart reaming sleeve pipe follow-up down-the-hole hammer drill is advanced equipment;
Fig. 3 is the longitdinal cross-section diagram that heart reaming sleeve pipe follow-up down-the-hole hammer drill is advanced equipment;
Fig. 4. A, B, C be respectively of the present utility model three kinds boring condition diagrams.
Among the figure, 1. the hollow bore bit 4. locking suspension ring of 3. pairs of heart reamings of down-the-hole hammer center bore bit 2. casing shoes 5. sleeve pipes 6. impactors 7. conventional down-the-holes are hammered bore bit 8. covering layers 9. basement rock into shape
The twice shoulder ring of center bore bit 1 can impact hollow bore bit 3 and casing shoe 2 simultaneously, and both are advanced with hole drill simultaneously, and the quarrel powder rises through the gaslift of deslagging groove.The screw thread of casing shoe 2 connects first segment sleeve pipe 5 ends, sleeve pipe 5 is advanced with pipe, and can not turn round.The rectangle annular groove at suspension ring 4 and the hollow bore bit of reaming 3 rear portions by the cover that contracts, applies axial compression, and reaming bore bit 3 and casing shoe 2 are fixed on one.Suspension ring 4 are at the rectangle annular groove spreading at reaming bore bit 3 rear portions, and are free to rotate each other.During boring, center bore bit 1 and hollow bore bit 3 turn round simultaneously, and the casing shoe 2 that casing shoe 2 connects with screw thread does not turn round by suspension ring 4 loose joints.When promoting sleeve pipe 5, suspension ring 4 lower surfaces and casing shoe 2 contact surfaces bear bigger promotion power.This structure is a domestic initiation, and reaming bore bit 3 can not be stayed in the hole when solving tube drawing.
Among the A of Fig. 4, center bore bit 1 advances with pipe bit in the hole after locking with hollow bore bit 3 simultaneously, and the upper shoulder ring of center-pole head 1 impacts the interior shoulder ring of casing shoe 2, and sleeve pipe 5 is pushed to follow up in the hole.In B, after the sleeve pipe follow-up is holed and finished, slight reverse commentaries on classics of drilling tool, untie the sunk key of center bore bit 1 and hollow bore bit 3 earlier, just can take out center bore bit 1 and drilling rod simultaneously.Hollow bore bit 3 is retained in the hole.As sleeve pipe 5 being proposed the hollow bore bit 3 of retrieval, repeated use.As not fetching sleeve pipe 5, but the simple disposable hollow bore bit of utilization structure is embedded in the hole with sleeve pipe.In C, after center bore bit 1 proposed, the conventional down-the-hole hammer bore bit in replaceable other suitable aperture was put back in the hole, continues to creep into bonding course or hard formation.
Characteristics of the present utility model are; 1 easily locking connection: in drilling process, during such as needs, can arbitrarily trip, propose to bore Bar in sleeve pipe, as meets the landwaste of falling, also can propose easily drilling rod, can not tighten Drilling tool. The proposition of triping easily of 2 drilling rods: after perforation finished, drilling rod returned slightly on a small quantity to be turned to, and just can The split of triping of center bore bit and hollow bore bit, easily in sleeve pipe drilling rod and center bore bit Together propose. Deslagging in the 3 effective sleeve pipes: after compressed gas is discharged by center bore bit stomidium, at drilling rod and cover The annular space that forms between pipe is discharged to ground to rock dust gaslift rising, can guarantee the high speed deslagging Efficient lowers poly-soil or hole wall variation in the hole. 4 use low rotary torque, and drilling speed is fast, and cost is low. But 5 multi-angle drillings.
Because the center bore bit is entity structure, and therefore diameter does not produce less than casing inner diameter Bit freezing.
Claims (1)
1. one kind is advanced equipment to heart reaming sleeve pipe follow-up down-the-hole hammer drill, it is characterized in that: comprise down-the-hole hammer center bore bit (1), casing shoe (2), the hollow bore bit of reaming (3) and locking suspension ring (4) etc., wherein on the Zhou Jing of center (1) bore bit, there are twice can impact the shoulder ring of hollow bore bit (3) and casing shoe (2) simultaneously, in center bore bit (1) body steam vent is arranged, external diameter has the deslagging groove; The screw thread that can connect with sleeve pipe (5) is arranged on the casing shoe (2); The internal diameter of the hollow bore bit of reaming (3) is provided with sunk key, can connect locking with the outer shroud groove of center bore bit (1); Locking suspension ring (4) are hatch frame, and with the rectangle annular groove at the hollow bore bit of reaming (3) rear portion, cover is fixed on one to hollow bore bit of reaming (3) and casing shoe (2) by contracting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98248208 CN2356137Y (en) | 1998-11-13 | 1998-11-13 | Drilling device for central hole enlarging sleeve follow-up down-the-hole hammer drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98248208 CN2356137Y (en) | 1998-11-13 | 1998-11-13 | Drilling device for central hole enlarging sleeve follow-up down-the-hole hammer drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2356137Y true CN2356137Y (en) | 1999-12-29 |
Family
ID=33993269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98248208 Expired - Fee Related CN2356137Y (en) | 1998-11-13 | 1998-11-13 | Drilling device for central hole enlarging sleeve follow-up down-the-hole hammer drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2356137Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101981269A (en) * | 2008-04-03 | 2011-02-23 | 山特维克矿山工程机械有限公司 | Drilling unit, method for slot drilling and slotting device |
| CN101982614A (en) * | 2010-10-11 | 2011-03-02 | 昆明捷程桩工有限责任公司 | Method for drilling rocks into pile by utilizing all casing drill |
| CN101581195B (en) * | 2009-06-16 | 2011-05-11 | 上海振中机械制造有限公司 | Environmental-friendly downhole hammer rock drilling machine |
| CN102094576A (en) * | 2010-12-01 | 2011-06-15 | 卢丹 | Crushing mechanism |
| CN102155150A (en) * | 2010-12-01 | 2011-08-17 | 卢丹 | Crushing mechanism with gas inlet pipe |
| CN102454364A (en) * | 2010-10-19 | 2012-05-16 | 中国石油化工集团公司 | Torsional impact drilling tool |
-
1998
- 1998-11-13 CN CN 98248208 patent/CN2356137Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101981269A (en) * | 2008-04-03 | 2011-02-23 | 山特维克矿山工程机械有限公司 | Drilling unit, method for slot drilling and slotting device |
| CN101581195B (en) * | 2009-06-16 | 2011-05-11 | 上海振中机械制造有限公司 | Environmental-friendly downhole hammer rock drilling machine |
| CN101982614A (en) * | 2010-10-11 | 2011-03-02 | 昆明捷程桩工有限责任公司 | Method for drilling rocks into pile by utilizing all casing drill |
| CN102454364A (en) * | 2010-10-19 | 2012-05-16 | 中国石油化工集团公司 | Torsional impact drilling tool |
| CN102454364B (en) * | 2010-10-19 | 2014-05-21 | 中国石油化工集团公司 | Torsional impact drilling tool |
| CN102094576A (en) * | 2010-12-01 | 2011-06-15 | 卢丹 | Crushing mechanism |
| CN102155150A (en) * | 2010-12-01 | 2011-08-17 | 卢丹 | Crushing mechanism with gas inlet pipe |
| CN102155150B (en) * | 2010-12-01 | 2013-09-25 | 卢丹 | Crushing mechanism with gas inlet pipe |
| CN102094576B (en) * | 2010-12-01 | 2013-12-25 | 卢丹 | Crushing mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |