CN201915823U - Bidirectional pneumatic down-hole hammer - Google Patents
Bidirectional pneumatic down-hole hammer Download PDFInfo
- Publication number
- CN201915823U CN201915823U CN2010206709659U CN201020670965U CN201915823U CN 201915823 U CN201915823 U CN 201915823U CN 2010206709659 U CN2010206709659 U CN 2010206709659U CN 201020670965 U CN201020670965 U CN 201020670965U CN 201915823 U CN201915823 U CN 201915823U
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- China
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- core pipe
- spline housing
- hole
- distribution seat
- top connection
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Abstract
The utility model relates to a bidirectional pneumatic down-hole hammer. The bidirectional pneumatic down-hole hammer is characterized in that the lower end of an upper connector (5) is connected with the upper end of an outer cylinder (11) through threads; the lower end of the outer cylinder (11) is connected with a spline housing (17) through threads; the spline housing (17) is connected with a drill bit (18) through a spline; a threaded hole is formed in the middle at the upper end of the upper connector (5); the upper connector (5) is connected with a drill pipe (1) through the threaded hole; an air distributing base (9), an inner cylinder (12), a middle spacer (13) and a lining (15) are installed in the outer cylinder (11) from the top down in sequence; a piston (14) is installed in the inner cylinder (12); a lower core tube (10) is installed at the lower part of the air distributing base (9) in hollow parts of the piston (14), the inner cylinder (12) and the drill bit (18); and an upper core tube (8) is installed in a hollow part at the upper part of the air distributing base (9). The bidirectional pneumatic down-hole hammer can perform drilling during normal operation, and perform reverse drilling to ensure that a drilling tool is withdrawn when a wall of a well collapses and the drilling tool is buried, is convenient to operate and safe for construction, and has good economic benefit.
Description
Technical field:
The utility model relates to a kind of two-way pneumatic down-the-hole hammer, dependent territory carpenter's journey plant equipment design field.
Background technology:
In large-scale construction projects such as highway, railway engineering, Hydraulic and Hydro-Power Engineering and municipal engineering, exist a large amount of landslide class geological disaster phenomenons, therefore must carry out the comprehensive regulation, to guarantee engineering safety to it.
The characteristics that easily produce class stratum, landslide are that geotechnical body is loose, broken, self-stability is poor, and the chance water electrode easily caves in even causes new landslide.In administering, major landslip generally adopts the slip casting anchoring both at home and abroad at present, in rock, adopt the rotary drilling of unidirectional down-the-hole hammering blow or with common abrasion drill drilling and forming hole, be lowered to reinforcing bar or anchor cable then and inject the fixed formation grouted anchor bar of cement paste, the geotechnical body of will easily sliding locking, so the key of slip casting anchoring is a drilling and forming hole.Yet when above-mentioned drilling and forming hole was constructed, drilling and forming hole made hole wall surrounding rock body stress release on the one hand, produced loosening phenomenon; Mud enters stratum immersion rock mass when creeping on the other hand, make that rock mass is further softening, unstability so that cause the hole wall undergauge, fall piece, accident such as the bury drills that collapses, make the drilling tool can't operate as normal, new landslide be can cause when serious, landslide control failure and personal injury accident caused.
Therefore, the catalase phenomenon that extensively exists in the landslide control engineering construction often causes lock of tool drilling, causes drilling tool to withdraw from and makes drilling tool and well scrap, so that cause great economic loss.
Summary of the invention:
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of two-way pneumatic down-the-hole hammer, can realize during its operate as normal creeping into, can reverse impact when the cave-in bury drills withdraw from drilling tool, have simple to operate, construction safety, high-quality and efficient, good in economic efficiency characteristics.
The utility model is to realize above-mentioned purpose by following technical solution.
In the structure of a kind of two-way pneumatic down-the-hole hammer, be provided with drilling rod, stack, the rope of pulling back, the rope tubular axis of pulling back, top connection, spring, guide, go up core pipe, distribution seat, time core pipe, outer shell, inner casing, middle spacer, piston, lining, bayonet lock, spline housing, drill bit; The lower end of top connection is connected by screw thread with the upper end of outer shell; The lower end of outer shell is connected by screw thread with spline housing; Spline housing is connected by spline with drill bit; Centre in the top connection upper end has screwed hole, is connected with drilling rod by screwed hole; Both sides in the top connection upper end have the exhaust screwed hole, and stack is installed in the exhaust screwed hole; In outer shell, distribution seat, inner casing, middle spacer, lining are installed successively from top to bottom; Liner clamp is on spline housing, and the distribution seat is compressed by top connection; Like this, distribution seat, inner casing, middle spacer, lining are fixed in the outer shell; Dress piston in the inner casing; In the hollow of the bottom of distribution seat, piston, inner casing, drill bit, the core pipe is housed down, the core pipe is housed in the hollow on distribution seat top; The bottom of last core pipe is processed with screw thread with the top of following core pipe, and by screw thread, last core pipe is connected with following core pipe; The top of last core pipe is provided with a shoulder, by core base on the shoulder in the upper end of distribution seat; The upper end of last core pipe is equipped with guide and spring, will go up core pipe compression set between top connection and distribution seat by guide and spring; In the radial hole on last core pipe top the rope tubular axis of pulling back is housed, an end of the rope of pulling back is fixed on the rope tubular axis of pulling back; Bayonet lock is placed in the radial hole of spline housing side, and drill bit can slide up and down in spline housing, when sliding into bottom dead centre, is blocked and can not drop out by bayonet lock.
The utility model has following beneficial effect compared with prior art:
1, can realize creeping into during the utility model operate as normal, when the cave-in bury drills, can withdraw from drilling tool by reverse impact, realize unfreezing.
2, design has the top connection of bullet hair style, and it is easier that drilling tool is withdrawed from.
3, the design distance control guide of pulling back can be controlled the distance of pulling back effectively, structure stroke and reverse impact speed that can control piston.
4, simple to operate, the construction safety, high-quality and efficient, good in economic efficiency of the utility model.
Description of drawings:
General structure schematic diagram when Fig. 1 creeps into for a kind of two-way pneumatic down-the-hole hammer forward impact.
General structure schematic diagram when Fig. 2 withdraws from for a kind of two-way pneumatic down-the-hole hammer reverse impact.
Among the figure: 1. drilling rod, 2. stack, 3. pull back rope, 4. pull back rope tubular axis, 5. top connection, 6. spring, 7. guide, 8. go up the core pipe, 9. the distribution seat, 10. play spacer in core pipe, 11. outer shells, 12. inner casings, 13., 14. pistons, 15. linings, 16. bayonet locks, 17. spline housings, 18. drill bits, 19. ball teeth.
The specific embodiment:
A kind of two-way pneumatic down-the-hole of the utility model is hammered into shape by drilling rod 1, stack 2, the rope 3 of pulling back, the rope tubular axis 4 of pulling back, top connection 5, spring 6, guide 7, upward core pipe 8, distribution seat 9, following core pipe 10, outer shell 11, inner casing 12, middle spacer 13, piston 14, lining 15, bayonet lock 16, spline housing 17, drill bit 18 etc. are formed.
During assembling, distribution seat 9 is inserted in the outer shell 11 by the upper end of outer shell 11, and inner casing 12 is then inserted in the outer shell 11 from the lower end of outer shell 11, and piston 14 is filled in the inner casing 12 by the lower end of inner casing 12, middle spacer 13, lining 15 is inserted in the outer shell 11 successively; In the spline housing 17 spline is arranged, there is spline the upper end of drill bit 18, and spline housing 17 is enclosed within the upper end of drill bit 18, and drill bit 18 can slide up and down in spline housing 17; Bayonet lock 16 is inserted in the radial hole of spline housing 17 sides, and drill bit 18 can not drop out from spline housing 17 because of bayonet lock 16 blocks; The upper end of the lower end of outer shell 11, spline housing 17 is processed with screw thread, and by this screw thread, spline housing 17 can couple together with the lower end of outer shell 11; The lower end of the upper end of following core pipe 10, last core pipe 8 is processed with screw thread, and by this screw thread, the two can couple together; Be guaranteed strength, the two can weld in the junction, becomes as a whole; Following core pipe 10 is inserted by the upper part of distribution seat 9; The lower end of guide 7 is processed with screw thread, and the top of last core pipe 8 shoulders is processed with screw thread, and the two is threaded by this; In guide 7, insert spring 6 along last core pipe 8, in the radial hole of last core pipe 8 upper ends, fill in the rope tubular axis 4 of pulling back, on the rope tubular axis 4 of pulling back, put the rope 3 of pulling back, will go up core pipe 8 then and push downwards, make core pipe 8 shoulder seats on distribution seat 9; The upper end of the lower end of top connection 5, outer shell 11 is processed with screw thread, by this screw thread top connection 5 and outer shell 11 is coupled together, and the rope 3 of pulling back will pass the centre bore of top connection 5; Inside, top connection 5 centre bores upper end is processed with screw thread, and there is screw thread drilling rod 1 lower end, and by this screw thread, drilling rod 1 couples together with top connection 5; Be processed with screw thread in top connection 5 steam vents, there is screw thread stack 2 lower ends, and by this screw thread, stack 2 couples together with top connection 5.
Claims (4)
1. a two-way pneumatic down-the-hole hammer comprises drilling rod (1), stack (2), top connection (5), spring (6), outer shell (11), middle spacer (13), lining (15), bayonet lock (16), spline housing (17), drill bit (18); It is characterized in that in its structure, being provided with pull back rope (3), the rope tubular axis (4) of pulling back, guide (7), last core pipe (8), distribution seat (9), following core pipe (10), inner casing (12), piston (14); The lower end of top connection (5) is connected by screw thread with the upper end of outer shell (11); The lower end of outer shell (11) is connected by screw thread with spline housing (17); Spline housing (17) is connected by spline with drill bit (18); Centre in top connection (5) upper end has screwed hole, is connected with drilling rod (1) by screwed hole; In outer shell (11), distribution seat (9), inner casing (12), middle spacer (13), lining (15) are installed successively from top to bottom; Lining (15) seat is on spline housing (17), and distribution seat (9) is compressed by top connection (5); Dress piston (14) in the inner casing (12); In the hollow of the bottom of distribution seat (9), piston (14), inner casing (12), drill bit (18), core pipe (10) is housed down, core pipe (8) is housed in the hollow on distribution seat (9) top; The bottom of last core pipe (8) is processed with screw thread with the top of following core pipe (10), and by screw thread, last core pipe (8) is connected with following core pipe (10); The top of last core pipe (8) is provided with a shoulder, by the upper end in distribution seat (9) of core pipe (8) on the shoulder; The upper end of last core pipe (8) is equipped with guide (7) and spring (6), will go up core pipe (8) compression set between top connection (5) and distribution seat (9) by guide (7) and spring (6).
2. a kind of two-way pneumatic down-the-hole hammer according to claim 1 is characterized in that having the exhaust screwed hole in the both sides of top connection (5) upper end, and stack (2) is installed in the exhaust screwed hole.
3. a kind of two-way pneumatic down-the-hole hammer according to claim 2, it is characterized in that bayonet lock (16) is placed in the radial hole of spline housing (17) side, drill bit (18) can slide up and down in spline housing (17), when sliding into bottom dead centre, is blocked and can not drop out by bayonet lock (16).
4. a kind of two-way pneumatic down-the-hole hammer according to claim 3 is characterized in that being equipped with the rope tubular axis (4) of pulling back in the radial hole on last core pipe (8) top, an end of the rope (3) of pulling back is fixed on the rope tubular axis (4) of pulling back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206709659U CN201915823U (en) | 2010-12-10 | 2010-12-10 | Bidirectional pneumatic down-hole hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206709659U CN201915823U (en) | 2010-12-10 | 2010-12-10 | Bidirectional pneumatic down-hole hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201915823U true CN201915823U (en) | 2011-08-03 |
Family
ID=44415625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206709659U Expired - Fee Related CN201915823U (en) | 2010-12-10 | 2010-12-10 | Bidirectional pneumatic down-hole hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201915823U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150345A (en) * | 2016-08-29 | 2016-11-23 | 山东天瑞重工有限公司 | The well air distribution system of fast energy-saving down-hole hammer |
| CN109882068A (en) * | 2019-01-23 | 2019-06-14 | 中南大学 | It is a kind of to arrange powder no-valve type distribution Bidirectional pneumatic down-hole hammer suitable for deep hole bad ground |
-
2010
- 2010-12-10 CN CN2010206709659U patent/CN201915823U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150345A (en) * | 2016-08-29 | 2016-11-23 | 山东天瑞重工有限公司 | The well air distribution system of fast energy-saving down-hole hammer |
| CN109882068A (en) * | 2019-01-23 | 2019-06-14 | 中南大学 | It is a kind of to arrange powder no-valve type distribution Bidirectional pneumatic down-hole hammer suitable for deep hole bad ground |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20111210 |